30796840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 41779160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 191, 232, 278, 290, 382, 556, 580, 695, 764, 955, 1112, 1160, 1390, 1528, 1910, 2780, 3820, 4031, 5539, 5560, 7640, 8062, 11078, 16124, 20155, 22156, 26549, 27695, 32248, 40310, 44312, 53098, 55390, 80620, 106196, 110780, 132745, 161240, 212392, 221560, 265490, 530980, 769921, 1061960, 1539842, 3079684, 3849605, 6159368, 7699210, 15398420, 30796840]

約数ペア:

[(1, 30796840), (2, 15398420), (4, 7699210), (5, 6159368), (8, 3849605), (10, 3079684), (20, 1539842), (29, 1061960), (40, 769921), (58, 530980), (116, 265490), (139, 221560), (145, 212392), (191, 161240), (232, 132745), (278, 110780), (290, 106196), (382, 80620), (556, 55390), (580, 53098), (695, 44312), (764, 40310), (955, 32248), (1112, 27695), (1160, 26549), (1390, 22156), (1528, 20155), (1910, 16124), (2780, 11078), (3820, 8062), (4031, 7640), (5539, 5560)]