80368340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309109}}^1$

素因数の和:309131

約数の個数: 24

約数和(自身を含む): 181756680

約数和(自身を除く): 101388340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309109, 618218, 1236436, 1545545, 3091090, 4018417, 6182180, 8036834, 16073668, 20092085, 40184170, 80368340]

約数ペア:

[(1, 80368340), (2, 40184170), (4, 20092085), (5, 16073668), (10, 8036834), (13, 6182180), (20, 4018417), (26, 3091090), (52, 1545545), (65, 1236436), (130, 618218), (260, 309109)]