20623840

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1553}}^1$

素因数の和:1651

約数の個数: 48

約数和(自身を含む): 49342608

約数和(自身を除く): 28718768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 160, 166, 332, 415, 664, 830, 1328, 1553, 1660, 2656, 3106, 3320, 6212, 6640, 7765, 12424, 13280, 15530, 24848, 31060, 49696, 62120, 124240, 128899, 248480, 257798, 515596, 644495, 1031192, 1288990, 2062384, 2577980, 4124768, 5155960, 10311920, 20623840]

約数ペア:

[(1, 20623840), (2, 10311920), (4, 5155960), (5, 4124768), (8, 2577980), (10, 2062384), (16, 1288990), (20, 1031192), (32, 644495), (40, 515596), (80, 257798), (83, 248480), (160, 128899), (166, 124240), (332, 62120), (415, 49696), (664, 31060), (830, 24848), (1328, 15530), (1553, 13280), (1660, 12424), (2656, 7765), (3106, 6640), (3320, 6212)]