76619980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 171941616

約数和(自身を除く): 95321636

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 53, 82, 86, 106, 164, 172, 205, 212, 215, 265, 410, 430, 530, 820, 860, 1060, 1681, 1763, 2173, 2279, 3362, 3526, 4346, 4558, 6724, 7052, 8405, 8692, 8815, 9116, 10865, 11395, 16810, 17630, 21730, 22790, 33620, 35260, 43460, 45580, 72283, 89093, 93439, 144566, 178186, 186878, 289132, 356372, 361415, 373756, 445465, 467195, 722830, 890930, 934390, 1445660, 1781860, 1868780, 3830999, 7661998, 15323996, 19154995, 38309990, 76619980]

約数ペア:

[(1, 76619980), (2, 38309990), (4, 19154995), (5, 15323996), (10, 7661998), (20, 3830999), (41, 1868780), (43, 1781860), (53, 1445660), (82, 934390), (86, 890930), (106, 722830), (164, 467195), (172, 445465), (205, 373756), (212, 361415), (215, 356372), (265, 289132), (410, 186878), (430, 178186), (530, 144566), (820, 93439), (860, 89093), (1060, 72283), (1681, 45580), (1763, 43460), (2173, 35260), (2279, 33620), (3362, 22790), (3526, 21730), (4346, 17630), (4558, 16810), (6724, 11395), (7052, 10865), (8405, 9116), (8692, 8815)]