8381490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21491}}^1$

素因数の和:21514

約数の個数: 32

約数和(自身を含む): 21663936

約数和(自身を除く): 13282446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 21491, 42982, 64473, 107455, 128946, 214910, 279383, 322365, 558766, 644730, 838149, 1396915, 1676298, 2793830, 4190745, 8381490]

約数ペア:

[(1, 8381490), (2, 4190745), (3, 2793830), (5, 1676298), (6, 1396915), (10, 838149), (13, 644730), (15, 558766), (26, 322365), (30, 279383), (39, 214910), (65, 128946), (78, 107455), (130, 64473), (195, 42982), (390, 21491)]