39573980

素因数分解:

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

素因数の和:171

約数の個数: 72

約数和(自身を含む): 90084960

約数和(自身を除く): 50510980

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, 961, 1420, 1798, 1922, 2059, 2201, 3596, 3844, 4118, 4402, 4495, 4805, 8236, 8804, 8990, 9610, 10295, 11005, 17980, 19220, 20590, 22010, 27869, 41180, 44020, 55738, 63829, 68231, 111476, 127658, 136462, 139345, 255316, 272924, 278690, 319145, 341155, 557380, 638290, 682310, 1276580, 1364620, 1978699, 3957398, 7914796, 9893495, 19786990, 39573980]

約数ペア:

[(1, 39573980), (2, 19786990), (4, 9893495), (5, 7914796), (10, 3957398), (20, 1978699), (29, 1364620), (31, 1276580), (58, 682310), (62, 638290), (71, 557380), (116, 341155), (124, 319145), (142, 278690), (145, 272924), (155, 255316), (284, 139345), (290, 136462), (310, 127658), (355, 111476), (580, 68231), (620, 63829), (710, 55738), (899, 44020), (961, 41180), (1420, 27869), (1798, 22010), (1922, 20590), (2059, 19220), (2201, 17980), (3596, 11005), (3844, 10295), (4118, 9610), (4402, 8990), (4495, 8804), (4805, 8236)]