31347440

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4721}}^1$

素因数の和:4817

約数の個数: 40

約数和(自身を含む): 73776528

約数和(自身を除く): 42429088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 4721, 6640, 9442, 18884, 23605, 37768, 47210, 75536, 94420, 188840, 377680, 391843, 783686, 1567372, 1959215, 3134744, 3918430, 6269488, 7836860, 15673720, 31347440]

約数ペア:

[(1, 31347440), (2, 15673720), (4, 7836860), (5, 6269488), (8, 3918430), (10, 3134744), (16, 1959215), (20, 1567372), (40, 783686), (80, 391843), (83, 377680), (166, 188840), (332, 94420), (415, 75536), (664, 47210), (830, 37768), (1328, 23605), (1660, 18884), (3320, 9442), (4721, 6640)]