38969680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^2$

素因数の和:272

約数の個数: 60

約数和(自身を含む): 93673692

約数和(自身を除く): 54704012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 328, 410, 436, 545, 656, 820, 872, 1090, 1640, 1744, 2180, 3280, 4360, 4469, 8720, 8938, 11881, 17876, 22345, 23762, 35752, 44690, 47524, 59405, 71504, 89380, 95048, 118810, 178760, 190096, 237620, 357520, 475240, 487121, 950480, 974242, 1948484, 2435605, 3896968, 4871210, 7793936, 9742420, 19484840, 38969680]

約数ペア:

[(1, 38969680), (2, 19484840), (4, 9742420), (5, 7793936), (8, 4871210), (10, 3896968), (16, 2435605), (20, 1948484), (40, 974242), (41, 950480), (80, 487121), (82, 475240), (109, 357520), (164, 237620), (205, 190096), (218, 178760), (328, 118810), (410, 95048), (436, 89380), (545, 71504), (656, 59405), (820, 47524), (872, 44690), (1090, 35752), (1640, 23762), (1744, 22345), (2180, 17876), (3280, 11881), (4360, 8938), (4469, 8720)]