81085240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119243}}^1$

素因数の和:119271

約数の個数: 32

約数和(自身を含む): 193175280

約数和(自身を除く): 112090040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119243, 238486, 476972, 596215, 953944, 1192430, 2027131, 2384860, 4054262, 4769720, 8108524, 10135655, 16217048, 20271310, 40542620, 81085240]

約数ペア:

[(1, 81085240), (2, 40542620), (4, 20271310), (5, 16217048), (8, 10135655), (10, 8108524), (17, 4769720), (20, 4054262), (34, 2384860), (40, 2027131), (68, 1192430), (85, 953944), (136, 596215), (170, 476972), (340, 238486), (680, 119243)]