642123720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:725

約数の個数: 256

約数和(自身を含む): 2466316800

約数和(自身を除く): 1824193080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 157, 168, 180, 189, 210, 216, 252, 270, 280, 314, 315, 360, 378, 420, 471, 504, 540, 541, 628, 630, 756, 785, 840, 942, 945, 1080, 1082, 1099, 1256, 1260, 1413, 1512, 1570, 1623, 1884, 1890, 2164, 2198, 2355, 2520, 2705, 2826, 3140, 3246, 3297, 3768, 3780, 3787, 4239, 4328, 4396, 4710, 4869, 5410, 5495, 5652, 6280, 6492, 6594, 7065, 7560, 7574, 8115, 8478, 8792, 9420, 9738, 9891, 10820, 10990, 11304, 11361, 12984, 13188, 14130, 14607, 15148, 16230, 16485, 16956, 18840, 18935, 19476, 19782, 21195, 21640, 21980, 22722, 24345, 26376, 28260, 29214, 29673, 30296, 32460, 32970, 33912, 34083, 37870, 38952, 39564, 42390, 43960, 45444, 48690, 49455, 56520, 56805, 58428, 59346, 64920, 65940, 68166, 73035, 75740, 79128, 84780, 84937, 90888, 97380, 98910, 102249, 113610, 116856, 118692, 131880, 136332, 146070, 148365, 151480, 169560, 169874, 170415, 194760, 197820, 204498, 227220, 237384, 254811, 272664, 292140, 296730, 339748, 340830, 395640, 408996, 424685, 454440, 509622, 511245, 584280, 593460, 594559, 679496, 681660, 764433, 817992, 849370, 1019244, 1022490, 1186920, 1189118, 1274055, 1363320, 1528866, 1698740, 1783677, 2038488, 2044980, 2293299, 2378236, 2548110, 2972795, 3057732, 3397480, 3567354, 3822165, 4089960, 4586598, 4756472, 5096220, 5351031, 5945590, 6115464, 7134708, 7644330, 8918385, 9173196, 10192440, 10702062, 11466495, 11891180, 14269416, 15288660, 16053093, 17836770, 18346392, 21404124, 22932990, 23782360, 26755155, 30577320, 32106186, 35673540, 42808248, 45865980, 53510310, 64212372, 71347080, 80265465, 91731960, 107020620, 128424744, 160530930, 214041240, 321061860, 642123720]

約数ペア:

[(1, 642123720), (2, 321061860), (3, 214041240), (4, 160530930), (5, 128424744), (6, 107020620), (7, 91731960), (8, 80265465), (9, 71347080), (10, 64212372), (12, 53510310), (14, 45865980), (15, 42808248), (18, 35673540), (20, 32106186), (21, 30577320), (24, 26755155), (27, 23782360), (28, 22932990), (30, 21404124), (35, 18346392), (36, 17836770), (40, 16053093), (42, 15288660), (45, 14269416), (54, 11891180), (56, 11466495), (60, 10702062), (63, 10192440), (70, 9173196), (72, 8918385), (84, 7644330), (90, 7134708), (105, 6115464), (108, 5945590), (120, 5351031), (126, 5096220), (135, 4756472), (140, 4586598), (157, 4089960), (168, 3822165), (180, 3567354), (189, 3397480), (210, 3057732), (216, 2972795), (252, 2548110), (270, 2378236), (280, 2293299), (314, 2044980), (315, 2038488), (360, 1783677), (378, 1698740), (420, 1528866), (471, 1363320), (504, 1274055), (540, 1189118), (541, 1186920), (628, 1022490), (630, 1019244), (756, 849370), (785, 817992), (840, 764433), (942, 681660), (945, 679496), (1080, 594559), (1082, 593460), (1099, 584280), (1256, 511245), (1260, 509622), (1413, 454440), (1512, 424685), (1570, 408996), (1623, 395640), (1884, 340830), (1890, 339748), (2164, 296730), (2198, 292140), (2355, 272664), (2520, 254811), (2705, 237384), (2826, 227220), (3140, 204498), (3246, 197820), (3297, 194760), (3768, 170415), (3780, 169874), (3787, 169560), (4239, 151480), (4328, 148365), (4396, 146070), (4710, 136332), (4869, 131880), (5410, 118692), (5495, 116856), (5652, 113610), (6280, 102249), (6492, 98910), (6594, 97380), (7065, 90888), (7560, 84937), (7574, 84780), (8115, 79128), (8478, 75740), (8792, 73035), (9420, 68166), (9738, 65940), (9891, 64920), (10820, 59346), (10990, 58428), (11304, 56805), (11361, 56520), (12984, 49455), (13188, 48690), (14130, 45444), (14607, 43960), (15148, 42390), (16230, 39564), (16485, 38952), (16956, 37870), (18840, 34083), (18935, 33912), (19476, 32970), (19782, 32460), (21195, 30296), (21640, 29673), (21980, 29214), (22722, 28260), (24345, 26376)]