1216340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 2598792

約数和(自身を除く): 1382452

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 997, 1220, 1994, 3988, 4985, 9970, 19940, 60817, 121634, 243268, 304085, 608170, 1216340]

約数ペア:

[(1, 1216340), (2, 608170), (4, 304085), (5, 243268), (10, 121634), (20, 60817), (61, 19940), (122, 9970), (244, 4985), (305, 3988), (610, 1994), (997, 1220)]