81313236

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2243}}^1$

素因数の和:2325

約数の個数: 72

約数和(自身を含む): 220540320

約数和(自身を除く): 139227084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 53, 57, 76, 106, 114, 159, 171, 212, 228, 318, 342, 477, 636, 684, 954, 1007, 1908, 2014, 2243, 3021, 4028, 4486, 6042, 6729, 8972, 9063, 12084, 13458, 18126, 20187, 26916, 36252, 40374, 42617, 80748, 85234, 118879, 127851, 170468, 237758, 255702, 356637, 383553, 475516, 511404, 713274, 767106, 1069911, 1426548, 1534212, 2139822, 2258701, 4279644, 4517402, 6776103, 9034804, 13552206, 20328309, 27104412, 40656618, 81313236]

約数ペア:

[(1, 81313236), (2, 40656618), (3, 27104412), (4, 20328309), (6, 13552206), (9, 9034804), (12, 6776103), (18, 4517402), (19, 4279644), (36, 2258701), (38, 2139822), (53, 1534212), (57, 1426548), (76, 1069911), (106, 767106), (114, 713274), (159, 511404), (171, 475516), (212, 383553), (228, 356637), (318, 255702), (342, 237758), (477, 170468), (636, 127851), (684, 118879), (954, 85234), (1007, 80748), (1908, 42617), (2014, 40374), (2243, 36252), (3021, 26916), (4028, 20187), (4486, 18126), (6042, 13458), (6729, 12084), (8972, 9063)]