127327240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{7561}}^1$

素因数の和:7993

約数の個数: 32

約数和(自身を含む): 287204760

約数和(自身を除く): 159877520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 7561, 8420, 15122, 16840, 30244, 37805, 60488, 75610, 151220, 302440, 3183181, 6366362, 12732724, 15915905, 25465448, 31831810, 63663620, 127327240]

約数ペア:

[(1, 127327240), (2, 63663620), (4, 31831810), (5, 25465448), (8, 15915905), (10, 12732724), (20, 6366362), (40, 3183181), (421, 302440), (842, 151220), (1684, 75610), (2105, 60488), (3368, 37805), (4210, 30244), (7561, 16840), (8420, 15122)]