20929380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42211740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 71, 85, 102, 142, 170, 204, 213, 255, 284, 289, 340, 355, 426, 510, 578, 710, 852, 867, 1020, 1065, 1156, 1207, 1420, 1445, 1734, 2130, 2414, 2890, 3468, 3621, 4260, 4335, 4828, 4913, 5780, 6035, 7242, 8670, 9826, 12070, 14484, 14739, 17340, 18105, 19652, 20519, 24140, 24565, 29478, 36210, 41038, 49130, 58956, 61557, 72420, 73695, 82076, 98260, 102595, 123114, 147390, 205190, 246228, 294780, 307785, 348823, 410380, 615570, 697646, 1046469, 1231140, 1395292, 1744115, 2092938, 3488230, 4185876, 5232345, 6976460, 10464690, 20929380]

約数ペア:

[(1, 20929380), (2, 10464690), (3, 6976460), (4, 5232345), (5, 4185876), (6, 3488230), (10, 2092938), (12, 1744115), (15, 1395292), (17, 1231140), (20, 1046469), (30, 697646), (34, 615570), (51, 410380), (60, 348823), (68, 307785), (71, 294780), (85, 246228), (102, 205190), (142, 147390), (170, 123114), (204, 102595), (213, 98260), (255, 82076), (284, 73695), (289, 72420), (340, 61557), (355, 58956), (426, 49130), (510, 41038), (578, 36210), (710, 29478), (852, 24565), (867, 24140), (1020, 20519), (1065, 19652), (1156, 18105), (1207, 17340), (1420, 14739), (1445, 14484), (1734, 12070), (2130, 9826), (2414, 8670), (2890, 7242), (3468, 6035), (3621, 5780), (4260, 4913), (4335, 4828)]