81358420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28447}}^1$

素因数の和:28480

約数の個数: 48

約数和(自身を含む): 200729088

約数和(自身を除く): 119370668

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 28447, 56894, 113788, 142235, 284470, 312917, 369811, 568940, 625834, 739622, 1251668, 1479244, 1564585, 1849055, 3129170, 3698110, 4067921, 6258340, 7396220, 8135842, 16271684, 20339605, 40679210, 81358420]

約数ペア:

[(1, 81358420), (2, 40679210), (4, 20339605), (5, 16271684), (10, 8135842), (11, 7396220), (13, 6258340), (20, 4067921), (22, 3698110), (26, 3129170), (44, 1849055), (52, 1564585), (55, 1479244), (65, 1251668), (110, 739622), (130, 625834), (143, 568940), (220, 369811), (260, 312917), (286, 284470), (572, 142235), (715, 113788), (1430, 56894), (2860, 28447)]