102443420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 221671296

約数和(自身を除く): 119227876

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 271, 410, 461, 542, 820, 922, 1084, 1355, 1844, 2305, 2710, 4610, 5420, 9220, 11111, 18901, 22222, 37802, 44444, 55555, 75604, 94505, 111110, 124931, 189010, 222220, 249862, 378020, 499724, 624655, 1249310, 2498620, 5122171, 10244342, 20488684, 25610855, 51221710, 102443420]

約数ペア:

[(1, 102443420), (2, 51221710), (4, 25610855), (5, 20488684), (10, 10244342), (20, 5122171), (41, 2498620), (82, 1249310), (164, 624655), (205, 499724), (271, 378020), (410, 249862), (461, 222220), (542, 189010), (820, 124931), (922, 111110), (1084, 94505), (1355, 75604), (1844, 55555), (2305, 44444), (2710, 37802), (4610, 22222), (5420, 18901), (9220, 11111)]