68677960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 96

約数和(自身を含む): 177163560

約数和(自身を除く): 108485600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 289, 340, 442, 457, 520, 578, 680, 884, 914, 1105, 1156, 1445, 1768, 1828, 2210, 2285, 2312, 2890, 3656, 3757, 4420, 4570, 5780, 5941, 7514, 7769, 8840, 9140, 11560, 11882, 15028, 15538, 18280, 18785, 23764, 29705, 30056, 31076, 37570, 38845, 47528, 59410, 62152, 75140, 77690, 100997, 118820, 132073, 150280, 155380, 201994, 237640, 264146, 310760, 403988, 504985, 528292, 660365, 807976, 1009970, 1056584, 1320730, 1716949, 2019940, 2641460, 3433898, 4039880, 5282920, 6867796, 8584745, 13735592, 17169490, 34338980, 68677960]

約数ペア:

[(1, 68677960), (2, 34338980), (4, 17169490), (5, 13735592), (8, 8584745), (10, 6867796), (13, 5282920), (17, 4039880), (20, 3433898), (26, 2641460), (34, 2019940), (40, 1716949), (52, 1320730), (65, 1056584), (68, 1009970), (85, 807976), (104, 660365), (130, 528292), (136, 504985), (170, 403988), (221, 310760), (260, 264146), (289, 237640), (340, 201994), (442, 155380), (457, 150280), (520, 132073), (578, 118820), (680, 100997), (884, 77690), (914, 75140), (1105, 62152), (1156, 59410), (1445, 47528), (1768, 38845), (1828, 37570), (2210, 31076), (2285, 30056), (2312, 29705), (2890, 23764), (3656, 18785), (3757, 18280), (4420, 15538), (4570, 15028), (5780, 11882), (5941, 11560), (7514, 9140), (7769, 8840)]