397280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 1016064

約数和(自身を除く): 618784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 191, 208, 260, 382, 416, 520, 764, 955, 1040, 1528, 1910, 2080, 2483, 3056, 3820, 4966, 6112, 7640, 9932, 12415, 15280, 19864, 24830, 30560, 39728, 49660, 79456, 99320, 198640, 397280]

約数ペア:

[(1, 397280), (2, 198640), (4, 99320), (5, 79456), (8, 49660), (10, 39728), (13, 30560), (16, 24830), (20, 19864), (26, 15280), (32, 12415), (40, 9932), (52, 7640), (65, 6112), (80, 4966), (104, 3820), (130, 3056), (160, 2483), (191, 2080), (208, 1910), (260, 1528), (382, 1040), (416, 955), (520, 764)]