72615220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{45959}}^1$

素因数の和:46047

約数の個数: 24

約数和(自身を含む): 154425600

約数和(自身を除く): 81810380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 45959, 91918, 183836, 229795, 459590, 919180, 3630761, 7261522, 14523044, 18153805, 36307610, 72615220]

約数ペア:

[(1, 72615220), (2, 36307610), (4, 18153805), (5, 14523044), (10, 7261522), (20, 3630761), (79, 919180), (158, 459590), (316, 229795), (395, 183836), (790, 91918), (1580, 45959)]