31270480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{22993}}^1$

素因数の和:23023

約数の個数: 40

約数和(自身を含む): 76983912

約数和(自身を除く): 45713432

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 22993, 45986, 91972, 114965, 183944, 229930, 367888, 390881, 459860, 781762, 919720, 1563524, 1839440, 1954405, 3127048, 3908810, 6254096, 7817620, 15635240, 31270480]

約数ペア:

[(1, 31270480), (2, 15635240), (4, 7817620), (5, 6254096), (8, 3908810), (10, 3127048), (16, 1954405), (17, 1839440), (20, 1563524), (34, 919720), (40, 781762), (68, 459860), (80, 390881), (85, 367888), (136, 229930), (170, 183944), (272, 114965), (340, 91972), (680, 45986), (1360, 22993)]