80131760

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18899}}^1$

素因数の和:18965

約数の個数: 40

約数和(自身を含む): 189831600

約数和(自身を除く): 109699840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18899, 37798, 75596, 94495, 151192, 188990, 302384, 377980, 755960, 1001647, 1511920, 2003294, 4006588, 5008235, 8013176, 10016470, 16026352, 20032940, 40065880, 80131760]

約数ペア:

[(1, 80131760), (2, 40065880), (4, 20032940), (5, 16026352), (8, 10016470), (10, 8013176), (16, 5008235), (20, 4006588), (40, 2003294), (53, 1511920), (80, 1001647), (106, 755960), (212, 377980), (265, 302384), (424, 188990), (530, 151192), (848, 94495), (1060, 75596), (2120, 37798), (4240, 18899)]