84121720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 196499520

約数和(自身を除く): 112377800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 113, 148, 185, 226, 296, 370, 452, 503, 565, 740, 904, 1006, 1130, 1480, 2012, 2260, 2515, 4024, 4181, 4520, 5030, 8362, 10060, 16724, 18611, 20120, 20905, 33448, 37222, 41810, 56839, 74444, 83620, 93055, 113678, 148888, 167240, 186110, 227356, 284195, 372220, 454712, 568390, 744440, 1136780, 2103043, 2273560, 4206086, 8412172, 10515215, 16824344, 21030430, 42060860, 84121720]

約数ペア:

[(1, 84121720), (2, 42060860), (4, 21030430), (5, 16824344), (8, 10515215), (10, 8412172), (20, 4206086), (37, 2273560), (40, 2103043), (74, 1136780), (113, 744440), (148, 568390), (185, 454712), (226, 372220), (296, 284195), (370, 227356), (452, 186110), (503, 167240), (565, 148888), (740, 113678), (904, 93055), (1006, 83620), (1130, 74444), (1480, 56839), (2012, 41810), (2260, 37222), (2515, 33448), (4024, 20905), (4181, 20120), (4520, 18611), (5030, 16724), (8362, 10060)]