101889520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20879}}^1$

素因数の和:20953

約数の個数: 40

約数和(自身を含む): 240788160

約数和(自身を除く): 138898640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 20879, 41758, 83516, 104395, 167032, 208790, 334064, 417580, 835160, 1273619, 1670320, 2547238, 5094476, 6368095, 10188952, 12736190, 20377904, 25472380, 50944760, 101889520]

約数ペア:

[(1, 101889520), (2, 50944760), (4, 25472380), (5, 20377904), (8, 12736190), (10, 10188952), (16, 6368095), (20, 5094476), (40, 2547238), (61, 1670320), (80, 1273619), (122, 835160), (244, 417580), (305, 334064), (488, 208790), (610, 167032), (976, 104395), (1220, 83516), (2440, 41758), (4880, 20879)]