91191980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2543}}^1$

素因数の和:2726

約数の個数: 48

約数和(自身を含む): 210276864

約数和(自身を除く): 119084884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 652, 815, 1630, 1793, 2543, 3260, 3586, 5086, 7172, 8965, 10172, 12715, 17930, 25430, 27973, 35860, 50860, 55946, 111892, 139865, 279730, 414509, 559460, 829018, 1658036, 2072545, 4145090, 4559599, 8290180, 9119198, 18238396, 22797995, 45595990, 91191980]

約数ペア:

[(1, 91191980), (2, 45595990), (4, 22797995), (5, 18238396), (10, 9119198), (11, 8290180), (20, 4559599), (22, 4145090), (44, 2072545), (55, 1658036), (110, 829018), (163, 559460), (220, 414509), (326, 279730), (652, 139865), (815, 111892), (1630, 55946), (1793, 50860), (2543, 35860), (3260, 27973), (3586, 25430), (5086, 17930), (7172, 12715), (8965, 10172)]