1276580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 2903040

約数和(自身を除く): 1626460

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 71, 116, 124, 142, 145, 155, 284, 290, 310, 355, 580, 620, 710, 899, 1420, 1798, 2059, 2201, 3596, 4118, 4402, 4495, 8236, 8804, 8990, 10295, 11005, 17980, 20590, 22010, 41180, 44020, 63829, 127658, 255316, 319145, 638290, 1276580]

約数ペア:

[(1, 1276580), (2, 638290), (4, 319145), (5, 255316), (10, 127658), (20, 63829), (29, 44020), (31, 41180), (58, 22010), (62, 20590), (71, 17980), (116, 11005), (124, 10295), (142, 8990), (145, 8804), (155, 8236), (284, 4495), (290, 4402), (310, 4118), (355, 3596), (580, 2201), (620, 2059), (710, 1798), (899, 1420)]