19727440

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2971}}^1$

素因数の和:3067

約数の個数: 40

約数和(自身を含む): 46434528

約数和(自身を除く): 26707088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2971, 3320, 5942, 6640, 11884, 14855, 23768, 29710, 47536, 59420, 118840, 237680, 246593, 493186, 986372, 1232965, 1972744, 2465930, 3945488, 4931860, 9863720, 19727440]

約数ペア:

[(1, 19727440), (2, 9863720), (4, 4931860), (5, 3945488), (8, 2465930), (10, 1972744), (16, 1232965), (20, 986372), (40, 493186), (80, 246593), (83, 237680), (166, 118840), (332, 59420), (415, 47536), (664, 29710), (830, 23768), (1328, 14855), (1660, 11884), (2971, 6640), (3320, 5942)]