61457029160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21639799}}^1$

素因数の和:21639881

約数の個数: 32

約数和(自身を含む): 140225904000

約数和(自身を除く): 78768874840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 21639799, 43279598, 86559196, 108198995, 173118392, 216397990, 432795980, 865591960, 1536425729, 3072851458, 6145702916, 7682128645, 12291405832, 15364257290, 30728514580, 61457029160]

約数ペア:

[(1, 61457029160), (2, 30728514580), (4, 15364257290), (5, 12291405832), (8, 7682128645), (10, 6145702916), (20, 3072851458), (40, 1536425729), (71, 865591960), (142, 432795980), (284, 216397990), (355, 173118392), (568, 108198995), (710, 86559196), (1420, 43279598), (2840, 21639799)]