400704120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 192

約数和(自身を含む): 1347503040

約数和(自身を除く): 946798920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 71, 72, 90, 120, 122, 142, 180, 183, 213, 244, 257, 284, 305, 355, 360, 366, 426, 488, 514, 549, 568, 610, 639, 710, 732, 771, 852, 915, 1028, 1065, 1098, 1220, 1278, 1285, 1420, 1464, 1542, 1704, 1830, 2056, 2130, 2196, 2313, 2440, 2556, 2570, 2745, 2840, 3084, 3195, 3660, 3855, 4260, 4331, 4392, 4626, 5112, 5140, 5490, 6168, 6390, 7320, 7710, 8520, 8662, 9252, 10280, 10980, 11565, 12780, 12993, 15420, 15677, 17324, 18247, 18504, 21655, 21960, 23130, 25560, 25986, 30840, 31354, 34648, 36494, 38979, 43310, 46260, 47031, 51972, 54741, 62708, 64965, 72988, 77958, 78385, 86620, 91235, 92520, 94062, 103944, 109482, 125416, 129930, 141093, 145976, 155916, 156770, 164223, 173240, 182470, 188124, 194895, 218964, 235155, 259860, 273705, 282186, 311832, 313540, 328446, 364940, 376248, 389790, 437928, 470310, 519720, 547410, 564372, 627080, 656892, 705465, 729880, 779580, 821115, 940620, 1094820, 1113067, 1128744, 1313784, 1410930, 1559160, 1642230, 1881240, 2189640, 2226134, 2821860, 3284460, 3339201, 4452268, 5565335, 5643720, 6568920, 6678402, 8904536, 10017603, 11130670, 13356804, 16696005, 20035206, 22261340, 26713608, 33392010, 40070412, 44522680, 50088015, 66784020, 80140824, 100176030, 133568040, 200352060, 400704120]

約数ペア:

[(1, 400704120), (2, 200352060), (3, 133568040), (4, 100176030), (5, 80140824), (6, 66784020), (8, 50088015), (9, 44522680), (10, 40070412), (12, 33392010), (15, 26713608), (18, 22261340), (20, 20035206), (24, 16696005), (30, 13356804), (36, 11130670), (40, 10017603), (45, 8904536), (60, 6678402), (61, 6568920), (71, 5643720), (72, 5565335), (90, 4452268), (120, 3339201), (122, 3284460), (142, 2821860), (180, 2226134), (183, 2189640), (213, 1881240), (244, 1642230), (257, 1559160), (284, 1410930), (305, 1313784), (355, 1128744), (360, 1113067), (366, 1094820), (426, 940620), (488, 821115), (514, 779580), (549, 729880), (568, 705465), (610, 656892), (639, 627080), (710, 564372), (732, 547410), (771, 519720), (852, 470310), (915, 437928), (1028, 389790), (1065, 376248), (1098, 364940), (1220, 328446), (1278, 313540), (1285, 311832), (1420, 282186), (1464, 273705), (1542, 259860), (1704, 235155), (1830, 218964), (2056, 194895), (2130, 188124), (2196, 182470), (2313, 173240), (2440, 164223), (2556, 156770), (2570, 155916), (2745, 145976), (2840, 141093), (3084, 129930), (3195, 125416), (3660, 109482), (3855, 103944), (4260, 94062), (4331, 92520), (4392, 91235), (4626, 86620), (5112, 78385), (5140, 77958), (5490, 72988), (6168, 64965), (6390, 62708), (7320, 54741), (7710, 51972), (8520, 47031), (8662, 46260), (9252, 43310), (10280, 38979), (10980, 36494), (11565, 34648), (12780, 31354), (12993, 30840), (15420, 25986), (15677, 25560), (17324, 23130), (18247, 21960), (18504, 21655)]