18578720

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1399}}^1$

素因数の和:1497

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 25874080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 160, 166, 332, 415, 664, 830, 1328, 1399, 1660, 2656, 2798, 3320, 5596, 6640, 6995, 11192, 13280, 13990, 22384, 27980, 44768, 55960, 111920, 116117, 223840, 232234, 464468, 580585, 928936, 1161170, 1857872, 2322340, 3715744, 4644680, 9289360, 18578720]

約数ペア:

[(1, 18578720), (2, 9289360), (4, 4644680), (5, 3715744), (8, 2322340), (10, 1857872), (16, 1161170), (20, 928936), (32, 580585), (40, 464468), (80, 232234), (83, 223840), (160, 116117), (166, 111920), (332, 55960), (415, 44768), (664, 27980), (830, 22384), (1328, 13990), (1399, 13280), (1660, 11192), (2656, 6995), (2798, 6640), (3320, 5596)]