72840140

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{24443}}^1$

素因数の和:24601

約数の個数: 24

約数和(自身を含む): 153997200

約数和(自身を除く): 81157060

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 24443, 48886, 97772, 122215, 244430, 488860, 3642007, 7284014, 14568028, 18210035, 36420070, 72840140]

約数ペア:

[(1, 72840140), (2, 36420070), (4, 18210035), (5, 14568028), (10, 7284014), (20, 3642007), (149, 488860), (298, 244430), (596, 122215), (745, 97772), (1490, 48886), (2980, 24443)]