64464440

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{19417}}^1$

素因数の和:19511

約数の個数: 32

約数和(自身を含む): 146800080

約数和(自身を除く): 82335640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 19417, 38834, 77668, 97085, 155336, 194170, 388340, 776680, 1611611, 3223222, 6446444, 8058055, 12892888, 16116110, 32232220, 64464440]

約数ペア:

[(1, 64464440), (2, 32232220), (4, 16116110), (5, 12892888), (8, 8058055), (10, 6446444), (20, 3223222), (40, 1611611), (83, 776680), (166, 388340), (332, 194170), (415, 155336), (664, 97085), (830, 77668), (1660, 38834), (3320, 19417)]