90821680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1$

素因数の和:614

約数の個数: 80

約数和(自身を含む): 220860864

約数和(自身を除く): 130039184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 122, 148, 185, 244, 296, 305, 370, 488, 503, 592, 610, 740, 976, 1006, 1220, 1480, 2012, 2257, 2440, 2515, 2960, 4024, 4514, 4880, 5030, 8048, 9028, 10060, 11285, 18056, 18611, 20120, 22570, 30683, 36112, 37222, 40240, 45140, 61366, 74444, 90280, 93055, 122732, 148888, 153415, 180560, 186110, 245464, 297776, 306830, 372220, 490928, 613660, 744440, 1135271, 1227320, 1488880, 2270542, 2454640, 4541084, 5676355, 9082168, 11352710, 18164336, 22705420, 45410840, 90821680]

約数ペア:

[(1, 90821680), (2, 45410840), (4, 22705420), (5, 18164336), (8, 11352710), (10, 9082168), (16, 5676355), (20, 4541084), (37, 2454640), (40, 2270542), (61, 1488880), (74, 1227320), (80, 1135271), (122, 744440), (148, 613660), (185, 490928), (244, 372220), (296, 306830), (305, 297776), (370, 245464), (488, 186110), (503, 180560), (592, 153415), (610, 148888), (740, 122732), (976, 93055), (1006, 90280), (1220, 74444), (1480, 61366), (2012, 45140), (2257, 40240), (2440, 37222), (2515, 36112), (2960, 30683), (4024, 22570), (4514, 20120), (4880, 18611), (5030, 18056), (8048, 11285), (9028, 10060)]