100721420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{1087}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 218792448

約数和(自身を除く): 118071028

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 113, 164, 205, 226, 410, 452, 565, 820, 1087, 1130, 2174, 2260, 4348, 4633, 5435, 9266, 10870, 18532, 21740, 23165, 44567, 46330, 89134, 92660, 122831, 178268, 222835, 245662, 445670, 491324, 614155, 891340, 1228310, 2456620, 5036071, 10072142, 20144284, 25180355, 50360710, 100721420]

約数ペア:

[(1, 100721420), (2, 50360710), (4, 25180355), (5, 20144284), (10, 10072142), (20, 5036071), (41, 2456620), (82, 1228310), (113, 891340), (164, 614155), (205, 491324), (226, 445670), (410, 245662), (452, 222835), (565, 178268), (820, 122831), (1087, 92660), (1130, 89134), (2174, 46330), (2260, 44567), (4348, 23165), (4633, 21740), (5435, 18532), (9266, 10870)]