85955440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 208647360

約数和(自身を除く): 122691920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 71, 74, 80, 142, 148, 185, 284, 296, 355, 370, 409, 568, 592, 710, 740, 818, 1136, 1420, 1480, 1636, 2045, 2627, 2840, 2960, 3272, 4090, 5254, 5680, 6544, 8180, 10508, 13135, 15133, 16360, 21016, 26270, 29039, 30266, 32720, 42032, 52540, 58078, 60532, 75665, 105080, 116156, 121064, 145195, 151330, 210160, 232312, 242128, 290390, 302660, 464624, 580780, 605320, 1074443, 1161560, 1210640, 2148886, 2323120, 4297772, 5372215, 8595544, 10744430, 17191088, 21488860, 42977720, 85955440]

約数ペア:

[(1, 85955440), (2, 42977720), (4, 21488860), (5, 17191088), (8, 10744430), (10, 8595544), (16, 5372215), (20, 4297772), (37, 2323120), (40, 2148886), (71, 1210640), (74, 1161560), (80, 1074443), (142, 605320), (148, 580780), (185, 464624), (284, 302660), (296, 290390), (355, 242128), (370, 232312), (409, 210160), (568, 151330), (592, 145195), (710, 121064), (740, 116156), (818, 105080), (1136, 75665), (1420, 60532), (1480, 58078), (1636, 52540), (2045, 42032), (2627, 32720), (2840, 30266), (2960, 29039), (3272, 26270), (4090, 21016), (5254, 16360), (5680, 15133), (6544, 13135), (8180, 10508)]