71321140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{7907}}^1$

素因数の和:7968

約数の個数: 48

約数和(自身を含む): 167396544

約数和(自身を除く): 96075404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 7907, 9020, 15814, 31628, 39535, 79070, 86977, 158140, 173954, 324187, 347908, 434885, 648374, 869770, 1296748, 1620935, 1739540, 3241870, 3566057, 6483740, 7132114, 14264228, 17830285, 35660570, 71321140]

約数ペア:

[(1, 71321140), (2, 35660570), (4, 17830285), (5, 14264228), (10, 7132114), (11, 6483740), (20, 3566057), (22, 3241870), (41, 1739540), (44, 1620935), (55, 1296748), (82, 869770), (110, 648374), (164, 434885), (205, 347908), (220, 324187), (410, 173954), (451, 158140), (820, 86977), (902, 79070), (1804, 39535), (2255, 31628), (4510, 15814), (7907, 9020)]