77846980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{63809}}^1$

素因数の和:63879

約数の個数: 24

約数和(自身を含む): 166161240

約数和(自身を除く): 88314260

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 63809, 127618, 255236, 319045, 638090, 1276180, 3892349, 7784698, 15569396, 19461745, 38923490, 77846980]

約数ペア:

[(1, 77846980), (2, 38923490), (4, 19461745), (5, 15569396), (10, 7784698), (20, 3892349), (61, 1276180), (122, 638090), (244, 319045), (305, 255236), (610, 127618), (1220, 63809)]