381031640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{1399}}^1$

素因数の和:2040

約数の個数: 64

約数和(自身を含む): 937440000

約数和(自身を除く): 556408360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 619, 1238, 1399, 2476, 2798, 3095, 4952, 5596, 6190, 6809, 6995, 11192, 12380, 13618, 13990, 15389, 24760, 27236, 27980, 30778, 34045, 54472, 55960, 61556, 68090, 76945, 123112, 136180, 153890, 272360, 307780, 615560, 865981, 1731962, 3463924, 4329905, 6927848, 8659810, 9525791, 17319620, 19051582, 34639240, 38103164, 47628955, 76206328, 95257910, 190515820, 381031640]

約数ペア:

[(1, 381031640), (2, 190515820), (4, 95257910), (5, 76206328), (8, 47628955), (10, 38103164), (11, 34639240), (20, 19051582), (22, 17319620), (40, 9525791), (44, 8659810), (55, 6927848), (88, 4329905), (110, 3463924), (220, 1731962), (440, 865981), (619, 615560), (1238, 307780), (1399, 272360), (2476, 153890), (2798, 136180), (3095, 123112), (4952, 76945), (5596, 68090), (6190, 61556), (6809, 55960), (6995, 54472), (11192, 34045), (12380, 30778), (13618, 27980), (13990, 27236), (15389, 24760)]