2020978040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1\times {\mathrm{2153}}^1$

素因数の和:2952

約数の個数: 64

約数和(自身を含む): 4702268160

約数和(自身を除く): 2681290120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 757, 1240, 1514, 2153, 3028, 3785, 4306, 6056, 7570, 8612, 10765, 15140, 17224, 21530, 23467, 30280, 43060, 46934, 66743, 86120, 93868, 117335, 133486, 187736, 234670, 266972, 333715, 469340, 533944, 667430, 938680, 1334860, 1629821, 2669720, 3259642, 6519284, 8149105, 13038568, 16298210, 32596420, 50524451, 65192840, 101048902, 202097804, 252622255, 404195608, 505244510, 1010489020, 2020978040]

約数ペア:

[(1, 2020978040), (2, 1010489020), (4, 505244510), (5, 404195608), (8, 252622255), (10, 202097804), (20, 101048902), (31, 65192840), (40, 50524451), (62, 32596420), (124, 16298210), (155, 13038568), (248, 8149105), (310, 6519284), (620, 3259642), (757, 2669720), (1240, 1629821), (1514, 1334860), (2153, 938680), (3028, 667430), (3785, 533944), (4306, 469340), (6056, 333715), (7570, 266972), (8612, 234670), (10765, 187736), (15140, 133486), (17224, 117335), (21530, 93868), (23467, 86120), (30280, 66743), (43060, 46934)]