25528240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 62558496

約数和(自身を除く): 37030256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 181, 205, 215, 328, 344, 362, 410, 430, 656, 688, 724, 820, 860, 905, 1448, 1640, 1720, 1763, 1810, 2896, 3280, 3440, 3526, 3620, 7052, 7240, 7421, 7783, 8815, 14104, 14480, 14842, 15566, 17630, 28208, 29684, 31132, 35260, 37105, 38915, 59368, 62264, 70520, 74210, 77830, 118736, 124528, 141040, 148420, 155660, 296840, 311320, 319103, 593680, 622640, 638206, 1276412, 1595515, 2552824, 3191030, 5105648, 6382060, 12764120, 25528240]

約数ペア:

[(1, 25528240), (2, 12764120), (4, 6382060), (5, 5105648), (8, 3191030), (10, 2552824), (16, 1595515), (20, 1276412), (40, 638206), (41, 622640), (43, 593680), (80, 319103), (82, 311320), (86, 296840), (164, 155660), (172, 148420), (181, 141040), (205, 124528), (215, 118736), (328, 77830), (344, 74210), (362, 70520), (410, 62264), (430, 59368), (656, 38915), (688, 37105), (724, 35260), (820, 31132), (860, 29684), (905, 28208), (1448, 17630), (1640, 15566), (1720, 14842), (1763, 14480), (1810, 14104), (2896, 8815), (3280, 7783), (3440, 7421), (3526, 7240), (3620, 7052)]