281658420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22039}}^1$

素因数の和:22125

約数の個数: 72

約数和(自身を含む): 866436480

約数和(自身を除く): 584778060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22039, 44078, 66117, 88156, 110195, 132234, 198351, 220390, 264468, 330585, 396702, 440780, 661170, 793404, 991755, 1322340, 1564769, 1983510, 3129538, 3967020, 4694307, 6259076, 7823845, 9388614, 14082921, 15647690, 18777228, 23471535, 28165842, 31295380, 46943070, 56331684, 70414605, 93886140, 140829210, 281658420]

約数ペア:

[(1, 281658420), (2, 140829210), (3, 93886140), (4, 70414605), (5, 56331684), (6, 46943070), (9, 31295380), (10, 28165842), (12, 23471535), (15, 18777228), (18, 15647690), (20, 14082921), (30, 9388614), (36, 7823845), (45, 6259076), (60, 4694307), (71, 3967020), (90, 3129538), (142, 1983510), (180, 1564769), (213, 1322340), (284, 991755), (355, 793404), (426, 661170), (639, 440780), (710, 396702), (852, 330585), (1065, 264468), (1278, 220390), (1420, 198351), (2130, 132234), (2556, 110195), (3195, 88156), (4260, 66117), (6390, 44078), (12780, 22039)]