19631840

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4231}}^1$

素因数の和:4275

約数の個数: 48

約数和(自身を含む): 47990880

約数和(自身を除く): 28359040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4231, 4640, 8462, 16924, 21155, 33848, 42310, 67696, 84620, 122699, 135392, 169240, 245398, 338480, 490796, 613495, 676960, 981592, 1226990, 1963184, 2453980, 3926368, 4907960, 9815920, 19631840]

約数ペア:

[(1, 19631840), (2, 9815920), (4, 4907960), (5, 3926368), (8, 2453980), (10, 1963184), (16, 1226990), (20, 981592), (29, 676960), (32, 613495), (40, 490796), (58, 338480), (80, 245398), (116, 169240), (145, 135392), (160, 122699), (232, 84620), (290, 67696), (464, 42310), (580, 33848), (928, 21155), (1160, 16924), (2320, 8462), (4231, 4640)]