80764840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155317}}^1$

素因数の和:155341

約数の個数: 32

約数和(自身を含む): 195700680

約数和(自身を除く): 114935840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155317, 310634, 621268, 776585, 1242536, 1553170, 2019121, 3106340, 4038242, 6212680, 8076484, 10095605, 16152968, 20191210, 40382420, 80764840]

約数ペア:

[(1, 80764840), (2, 40382420), (4, 20191210), (5, 16152968), (8, 10095605), (10, 8076484), (13, 6212680), (20, 4038242), (26, 3106340), (40, 2019121), (52, 1553170), (65, 1242536), (104, 776585), (130, 621268), (260, 310634), (520, 155317)]