72988540

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{43969}}^1$

素因数の和:44061

約数の個数: 24

約数和(自身を含む): 155126160

約数和(自身を除く): 82137620

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 43969, 87938, 175876, 219845, 439690, 879380, 3649427, 7298854, 14597708, 18247135, 36494270, 72988540]

約数ペア:

[(1, 72988540), (2, 36494270), (4, 18247135), (5, 14597708), (10, 7298854), (20, 3649427), (83, 879380), (166, 439690), (332, 219845), (415, 175876), (830, 87938), (1660, 43969)]