1278988920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:771

約数の個数: 256

約数和(自身を含む): 4682880000

約数和(自身を除く): 3403891080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 199, 216, 220, 264, 270, 297, 330, 360, 396, 398, 440, 495, 540, 541, 594, 597, 660, 792, 796, 990, 995, 1080, 1082, 1188, 1194, 1320, 1485, 1592, 1623, 1791, 1980, 1990, 2164, 2189, 2376, 2388, 2705, 2970, 2985, 3246, 3582, 3960, 3980, 4328, 4378, 4776, 4869, 5373, 5410, 5940, 5951, 5970, 6492, 6567, 7164, 7960, 8115, 8756, 8955, 9738, 10746, 10820, 10945, 11880, 11902, 11940, 12984, 13134, 14328, 14607, 16230, 17512, 17853, 17910, 19476, 19701, 21492, 21640, 21890, 23804, 23880, 24345, 26268, 26865, 29214, 29755, 32460, 32835, 35706, 35820, 38952, 39402, 42984, 43780, 47608, 48690, 52536, 53559, 53730, 58428, 59103, 59510, 64920, 65670, 71412, 71640, 73035, 78804, 87560, 89265, 97380, 98505, 107118, 107460, 107659, 116856, 118206, 119020, 131340, 142824, 146070, 157608, 160677, 178530, 194760, 197010, 214236, 214920, 215318, 236412, 238040, 262680, 267795, 292140, 295515, 321354, 322977, 357060, 394020, 428472, 430636, 472824, 535590, 538295, 584280, 591030, 642708, 645954, 714120, 788040, 803385, 861272, 968931, 1071180, 1076590, 1182060, 1184249, 1285416, 1291908, 1606770, 1614885, 1937862, 2142360, 2153180, 2364120, 2368498, 2583816, 2906793, 3213540, 3229770, 3552747, 3875724, 4306360, 4736996, 4844655, 5813586, 5921245, 6427080, 6459540, 7105494, 7751448, 9473992, 9689310, 10658241, 11627172, 11842490, 12919080, 14210988, 14533965, 17763735, 19378620, 21316482, 23254344, 23684980, 28421976, 29067930, 31974723, 35527470, 38757240, 42632964, 47369960, 53291205, 58135860, 63949446, 71054940, 85265928, 106582410, 116271720, 127898892, 142109880, 159873615, 213164820, 255797784, 319747230, 426329640, 639494460, 1278988920]

約数ペア:

[(1, 1278988920), (2, 639494460), (3, 426329640), (4, 319747230), (5, 255797784), (6, 213164820), (8, 159873615), (9, 142109880), (10, 127898892), (11, 116271720), (12, 106582410), (15, 85265928), (18, 71054940), (20, 63949446), (22, 58135860), (24, 53291205), (27, 47369960), (30, 42632964), (33, 38757240), (36, 35527470), (40, 31974723), (44, 29067930), (45, 28421976), (54, 23684980), (55, 23254344), (60, 21316482), (66, 19378620), (72, 17763735), (88, 14533965), (90, 14210988), (99, 12919080), (108, 11842490), (110, 11627172), (120, 10658241), (132, 9689310), (135, 9473992), (165, 7751448), (180, 7105494), (198, 6459540), (199, 6427080), (216, 5921245), (220, 5813586), (264, 4844655), (270, 4736996), (297, 4306360), (330, 3875724), (360, 3552747), (396, 3229770), (398, 3213540), (440, 2906793), (495, 2583816), (540, 2368498), (541, 2364120), (594, 2153180), (597, 2142360), (660, 1937862), (792, 1614885), (796, 1606770), (990, 1291908), (995, 1285416), (1080, 1184249), (1082, 1182060), (1188, 1076590), (1194, 1071180), (1320, 968931), (1485, 861272), (1592, 803385), (1623, 788040), (1791, 714120), (1980, 645954), (1990, 642708), (2164, 591030), (2189, 584280), (2376, 538295), (2388, 535590), (2705, 472824), (2970, 430636), (2985, 428472), (3246, 394020), (3582, 357060), (3960, 322977), (3980, 321354), (4328, 295515), (4378, 292140), (4776, 267795), (4869, 262680), (5373, 238040), (5410, 236412), (5940, 215318), (5951, 214920), (5970, 214236), (6492, 197010), (6567, 194760), (7164, 178530), (7960, 160677), (8115, 157608), (8756, 146070), (8955, 142824), (9738, 131340), (10746, 119020), (10820, 118206), (10945, 116856), (11880, 107659), (11902, 107460), (11940, 107118), (12984, 98505), (13134, 97380), (14328, 89265), (14607, 87560), (16230, 78804), (17512, 73035), (17853, 71640), (17910, 71412), (19476, 65670), (19701, 64920), (21492, 59510), (21640, 59103), (21890, 58428), (23804, 53730), (23880, 53559), (24345, 52536), (26268, 48690), (26865, 47608), (29214, 43780), (29755, 42984), (32460, 39402), (32835, 38952), (35706, 35820)]