64500340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{40823}}^1$

素因数の和:40911

約数の個数: 24

約数和(自身を含む): 137168640

約数和(自身を除く): 72668300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 40823, 81646, 163292, 204115, 408230, 816460, 3225017, 6450034, 12900068, 16125085, 32250170, 64500340]

約数ペア:

[(1, 64500340), (2, 32250170), (4, 16125085), (5, 12900068), (10, 6450034), (20, 3225017), (79, 816460), (158, 408230), (316, 204115), (395, 163292), (790, 81646), (1580, 40823)]