7717840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 19904976

約数和(自身を除く): 12187136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 181, 205, 208, 260, 328, 362, 410, 520, 533, 656, 724, 820, 905, 1040, 1066, 1448, 1640, 1810, 2132, 2353, 2665, 2896, 3280, 3620, 4264, 4706, 5330, 7240, 7421, 8528, 9412, 10660, 11765, 14480, 14842, 18824, 21320, 23530, 29684, 37105, 37648, 42640, 47060, 59368, 74210, 94120, 96473, 118736, 148420, 188240, 192946, 296840, 385892, 482365, 593680, 771784, 964730, 1543568, 1929460, 3858920, 7717840]

約数ペア:

[(1, 7717840), (2, 3858920), (4, 1929460), (5, 1543568), (8, 964730), (10, 771784), (13, 593680), (16, 482365), (20, 385892), (26, 296840), (40, 192946), (41, 188240), (52, 148420), (65, 118736), (80, 96473), (82, 94120), (104, 74210), (130, 59368), (164, 47060), (181, 42640), (205, 37648), (208, 37105), (260, 29684), (328, 23530), (362, 21320), (410, 18824), (520, 14842), (533, 14480), (656, 11765), (724, 10660), (820, 9412), (905, 8528), (1040, 7421), (1066, 7240), (1448, 5330), (1640, 4706), (1810, 4264), (2132, 3620), (2353, 3280), (2665, 2896)]