79770340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{306809}}^1$

素因数の和:306831

約数の個数: 24

約数和(自身を含む): 180404280

約数和(自身を除く): 100633940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 306809, 613618, 1227236, 1534045, 3068090, 3988517, 6136180, 7977034, 15954068, 19942585, 39885170, 79770340]

約数ペア:

[(1, 79770340), (2, 39885170), (4, 19942585), (5, 15954068), (10, 7977034), (13, 6136180), (20, 3988517), (26, 3068090), (52, 1534045), (65, 1227236), (130, 613618), (260, 306809)]