81868358

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 148408848

約数和(自身を除く): 66540490

約数列:

[1, 2, 11, 13, 22, 26, 53, 106, 121, 143, 242, 286, 491, 583, 689, 982, 1166, 1378, 1573, 3146, 5401, 6383, 6413, 7579, 10802, 12766, 12826, 15158, 26023, 52046, 59411, 70213, 83369, 118822, 140426, 166738, 286253, 338299, 572506, 676598, 772343, 1544686, 3148783, 3721289, 6297566, 7442578, 40934179, 81868358]

約数ペア:

[(1, 81868358), (2, 40934179), (11, 7442578), (13, 6297566), (22, 3721289), (26, 3148783), (53, 1544686), (106, 772343), (121, 676598), (143, 572506), (242, 338299), (286, 286253), (491, 166738), (583, 140426), (689, 118822), (982, 83369), (1166, 70213), (1378, 59411), (1573, 52046), (3146, 26023), (5401, 15158), (6383, 12826), (6413, 12766), (7579, 10802)]