1337421640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{815501}}^1$

素因数の和:815553

約数の個数: 32

約数和(自身を含む): 3082597560

約数和(自身を除く): 1745175920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 815501, 1631002, 3262004, 4077505, 6524008, 8155010, 16310020, 32620040, 33435541, 66871082, 133742164, 167177705, 267484328, 334355410, 668710820, 1337421640]

約数ペア:

[(1, 1337421640), (2, 668710820), (4, 334355410), (5, 267484328), (8, 167177705), (10, 133742164), (20, 66871082), (40, 33435541), (41, 32620040), (82, 16310020), (164, 8155010), (205, 6524008), (328, 4077505), (410, 3262004), (820, 1631002), (1640, 815501)]