8178820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 18768960

約数和(自身を除く): 10590140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 379, 415, 758, 830, 1079, 1516, 1660, 1895, 2158, 3790, 4316, 4927, 5395, 7580, 9854, 10790, 19708, 21580, 24635, 31457, 49270, 62914, 98540, 125828, 157285, 314570, 408941, 629140, 817882, 1635764, 2044705, 4089410, 8178820]

約数ペア:

[(1, 8178820), (2, 4089410), (4, 2044705), (5, 1635764), (10, 817882), (13, 629140), (20, 408941), (26, 314570), (52, 157285), (65, 125828), (83, 98540), (130, 62914), (166, 49270), (260, 31457), (332, 24635), (379, 21580), (415, 19708), (758, 10790), (830, 9854), (1079, 7580), (1516, 5395), (1660, 4927), (1895, 4316), (2158, 3790)]