278380356

素因数分解:

$2^2\times 3^1\times {\mathrm{421}}^1\times {\mathrm{55103}}^1$

素因数の和:55531

約数の個数: 24

約数和(自身を含む): 651108864

約数和(自身を除く): 372728508

約数列:

[1, 2, 3, 4, 6, 12, 421, 842, 1263, 1684, 2526, 5052, 55103, 110206, 165309, 220412, 330618, 661236, 23198363, 46396726, 69595089, 92793452, 139190178, 278380356]

約数ペア:

[(1, 278380356), (2, 139190178), (3, 92793452), (4, 69595089), (6, 46396726), (12, 23198363), (421, 661236), (842, 330618), (1263, 220412), (1684, 165309), (2526, 110206), (5052, 55103)]