78117880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67343}}^1$

素因数の和:67383

約数の個数: 32

約数和(自身を含む): 181828800

約数和(自身を除く): 103710920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67343, 134686, 269372, 336715, 538744, 673430, 1346860, 1952947, 2693720, 3905894, 7811788, 9764735, 15623576, 19529470, 39058940, 78117880]

約数ペア:

[(1, 78117880), (2, 39058940), (4, 19529470), (5, 15623576), (8, 9764735), (10, 7811788), (20, 3905894), (29, 2693720), (40, 1952947), (58, 1346860), (116, 673430), (145, 538744), (232, 336715), (290, 269372), (580, 134686), (1160, 67343)]