78437320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:527

約数の個数: 128

約数和(自身を含む): 212284800

約数和(自身を除く): 133847480

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 467, 494, 520, 646, 680, 760, 884, 934, 988, 1105, 1235, 1292, 1615, 1768, 1868, 1976, 2210, 2335, 2470, 2584, 3230, 3736, 4199, 4420, 4670, 4940, 6071, 6460, 7939, 8398, 8840, 8873, 9340, 9880, 12142, 12920, 15878, 16796, 17746, 18680, 20995, 24284, 30355, 31756, 33592, 35492, 39695, 41990, 44365, 48568, 60710, 63512, 70984, 79390, 83980, 88730, 103207, 115349, 121420, 150841, 158780, 167960, 177460, 206414, 230698, 242840, 301682, 317560, 354920, 412828, 461396, 516035, 576745, 603364, 754205, 825656, 922792, 1032070, 1153490, 1206728, 1508410, 1960933, 2064140, 2306980, 3016820, 3921866, 4128280, 4613960, 6033640, 7843732, 9804665, 15687464, 19609330, 39218660, 78437320]

約数ペア:

[(1, 78437320), (2, 39218660), (4, 19609330), (5, 15687464), (8, 9804665), (10, 7843732), (13, 6033640), (17, 4613960), (19, 4128280), (20, 3921866), (26, 3016820), (34, 2306980), (38, 2064140), (40, 1960933), (52, 1508410), (65, 1206728), (68, 1153490), (76, 1032070), (85, 922792), (95, 825656), (104, 754205), (130, 603364), (136, 576745), (152, 516035), (170, 461396), (190, 412828), (221, 354920), (247, 317560), (260, 301682), (323, 242840), (340, 230698), (380, 206414), (442, 177460), (467, 167960), (494, 158780), (520, 150841), (646, 121420), (680, 115349), (760, 103207), (884, 88730), (934, 83980), (988, 79390), (1105, 70984), (1235, 63512), (1292, 60710), (1615, 48568), (1768, 44365), (1868, 41990), (1976, 39695), (2210, 35492), (2335, 33592), (2470, 31756), (2584, 30355), (3230, 24284), (3736, 20995), (4199, 18680), (4420, 17746), (4670, 16796), (4940, 15878), (6071, 12920), (6460, 12142), (7939, 9880), (8398, 9340), (8840, 8873)]