56128540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3539}}^1$

素因数の和:3622

約数の個数: 48

約数和(自身を含む): 129054240

約数和(自身を除く): 72925700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3539, 3965, 7078, 7930, 14156, 15860, 17695, 35390, 46007, 70780, 92014, 184028, 215879, 230035, 431758, 460070, 863516, 920140, 1079395, 2158790, 2806427, 4317580, 5612854, 11225708, 14032135, 28064270, 56128540]

約数ペア:

[(1, 56128540), (2, 28064270), (4, 14032135), (5, 11225708), (10, 5612854), (13, 4317580), (20, 2806427), (26, 2158790), (52, 1079395), (61, 920140), (65, 863516), (122, 460070), (130, 431758), (244, 230035), (260, 215879), (305, 184028), (610, 92014), (793, 70780), (1220, 46007), (1586, 35390), (3172, 17695), (3539, 15860), (3965, 14156), (7078, 7930)]