3945825

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 8124480

約数和(自身を除く): 4178655

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 71, 75, 95, 117, 171, 195, 213, 225, 247, 285, 325, 355, 475, 585, 639, 741, 855, 923, 975, 1065, 1235, 1349, 1425, 1775, 2223, 2769, 2925, 3195, 3705, 4047, 4275, 4615, 5325, 6175, 6745, 8307, 11115, 12141, 13845, 15975, 17537, 18525, 20235, 23075, 33725, 41535, 52611, 55575, 60705, 69225, 87685, 101175, 157833, 207675, 263055, 303525, 438425, 789165, 1315275, 3945825]

約数ペア:

[(1, 3945825), (3, 1315275), (5, 789165), (9, 438425), (13, 303525), (15, 263055), (19, 207675), (25, 157833), (39, 101175), (45, 87685), (57, 69225), (65, 60705), (71, 55575), (75, 52611), (95, 41535), (117, 33725), (171, 23075), (195, 20235), (213, 18525), (225, 17537), (247, 15975), (285, 13845), (325, 12141), (355, 11115), (475, 8307), (585, 6745), (639, 6175), (741, 5325), (855, 4615), (923, 4275), (975, 4047), (1065, 3705), (1235, 3195), (1349, 2925), (1425, 2769), (1775, 2223)]