71561025

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 134169984

約数和(自身を除く): 62608959

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 67, 75, 101, 141, 201, 225, 235, 303, 335, 423, 505, 603, 705, 909, 1005, 1175, 1515, 1675, 2115, 2525, 3015, 3149, 3525, 4545, 4747, 5025, 6767, 7575, 9447, 10575, 14241, 15075, 15745, 20301, 22725, 23735, 28341, 33835, 42723, 47235, 60903, 71205, 78725, 101505, 118675, 141705, 169175, 213615, 236175, 304515, 318049, 356025, 507525, 708525, 954147, 1068075, 1522575, 1590245, 2862441, 4770735, 7951225, 14312205, 23853675, 71561025]

約数ペア:

[(1, 71561025), (3, 23853675), (5, 14312205), (9, 7951225), (15, 4770735), (25, 2862441), (45, 1590245), (47, 1522575), (67, 1068075), (75, 954147), (101, 708525), (141, 507525), (201, 356025), (225, 318049), (235, 304515), (303, 236175), (335, 213615), (423, 169175), (505, 141705), (603, 118675), (705, 101505), (909, 78725), (1005, 71205), (1175, 60903), (1515, 47235), (1675, 42723), (2115, 33835), (2525, 28341), (3015, 23735), (3149, 22725), (3525, 20301), (4545, 15745), (4747, 15075), (5025, 14241), (6767, 10575), (7575, 9447)]