80353520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77263}}^1$

素因数の和:77289

約数の個数: 40

約数和(自身を含む): 201195456

約数和(自身を除く): 120841936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77263, 154526, 309052, 386315, 618104, 772630, 1004419, 1236208, 1545260, 2008838, 3090520, 4017676, 5022095, 6181040, 8035352, 10044190, 16070704, 20088380, 40176760, 80353520]

約数ペア:

[(1, 80353520), (2, 40176760), (4, 20088380), (5, 16070704), (8, 10044190), (10, 8035352), (13, 6181040), (16, 5022095), (20, 4017676), (26, 3090520), (40, 2008838), (52, 1545260), (65, 1236208), (80, 1004419), (104, 772630), (130, 618104), (208, 386315), (260, 309052), (520, 154526), (1040, 77263)]