89617280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4517}}^1$

素因数の和:4567

約数の個数: 64

約数和(自身を含む): 221201280

約数和(自身を除く): 131584000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4517, 4960, 9034, 9920, 18068, 19840, 22585, 36136, 45170, 72272, 90340, 140027, 144544, 180680, 280054, 289088, 361360, 560108, 578176, 700135, 722720, 1120216, 1400270, 1445440, 2240432, 2800540, 2890880, 4480864, 5601080, 8961728, 11202160, 17923456, 22404320, 44808640, 89617280]

約数ペア:

[(1, 89617280), (2, 44808640), (4, 22404320), (5, 17923456), (8, 11202160), (10, 8961728), (16, 5601080), (20, 4480864), (31, 2890880), (32, 2800540), (40, 2240432), (62, 1445440), (64, 1400270), (80, 1120216), (124, 722720), (128, 700135), (155, 578176), (160, 560108), (248, 361360), (310, 289088), (320, 280054), (496, 180680), (620, 144544), (640, 140027), (992, 90340), (1240, 72272), (1984, 45170), (2480, 36136), (3968, 22585), (4517, 19840), (4960, 18068), (9034, 9920)]