123800440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 287400960

約数和(自身を除く): 163600520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 167, 172, 215, 334, 344, 430, 431, 668, 835, 860, 862, 1336, 1670, 1720, 1724, 2155, 3340, 3448, 4310, 6680, 7181, 8620, 14362, 17240, 18533, 28724, 35905, 37066, 57448, 71810, 71977, 74132, 92665, 143620, 143954, 148264, 185330, 287240, 287908, 359885, 370660, 575816, 719770, 741320, 1439540, 2879080, 3095011, 6190022, 12380044, 15475055, 24760088, 30950110, 61900220, 123800440]

約数ペア:

[(1, 123800440), (2, 61900220), (4, 30950110), (5, 24760088), (8, 15475055), (10, 12380044), (20, 6190022), (40, 3095011), (43, 2879080), (86, 1439540), (167, 741320), (172, 719770), (215, 575816), (334, 370660), (344, 359885), (430, 287908), (431, 287240), (668, 185330), (835, 148264), (860, 143954), (862, 143620), (1336, 92665), (1670, 74132), (1720, 71977), (1724, 71810), (2155, 57448), (3340, 37066), (3448, 35905), (4310, 28724), (6680, 18533), (7181, 17240), (8620, 14362)]