12400040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7561}}^1$

素因数の和:7613

約数の個数: 32

約数和(自身を含む): 28584360

約数和(自身を除く): 16184320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7561, 15122, 30244, 37805, 60488, 75610, 151220, 302440, 310001, 620002, 1240004, 1550005, 2480008, 3100010, 6200020, 12400040]

約数ペア:

[(1, 12400040), (2, 6200020), (4, 3100010), (5, 2480008), (8, 1550005), (10, 1240004), (20, 620002), (40, 310001), (41, 302440), (82, 151220), (164, 75610), (205, 60488), (328, 37805), (410, 30244), (820, 15122), (1640, 7561)]