78671240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115693}}^1$

素因数の和:115721

約数の個数: 32

約数和(自身を含む): 187424280

約数和(自身を除く): 108753040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115693, 231386, 462772, 578465, 925544, 1156930, 1966781, 2313860, 3933562, 4627720, 7867124, 9833905, 15734248, 19667810, 39335620, 78671240]

約数ペア:

[(1, 78671240), (2, 39335620), (4, 19667810), (5, 15734248), (8, 9833905), (10, 7867124), (17, 4627720), (20, 3933562), (34, 2313860), (40, 1966781), (68, 1156930), (85, 925544), (136, 578465), (170, 462772), (340, 231386), (680, 115693)]