1557704620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{797}}^1\times {\mathrm{1237}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 3319424640

約数和(自身を除く): 1761720020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 797, 1237, 1580, 1594, 2474, 3188, 3985, 4948, 6185, 7970, 12370, 15940, 24740, 62963, 97723, 125926, 195446, 251852, 314815, 390892, 488615, 629630, 977230, 985889, 1259260, 1954460, 1971778, 3943556, 4929445, 9858890, 19717780, 77885231, 155770462, 311540924, 389426155, 778852310, 1557704620]

約数ペア:

[(1, 1557704620), (2, 778852310), (4, 389426155), (5, 311540924), (10, 155770462), (20, 77885231), (79, 19717780), (158, 9858890), (316, 4929445), (395, 3943556), (790, 1971778), (797, 1954460), (1237, 1259260), (1580, 985889), (1594, 977230), (2474, 629630), (3188, 488615), (3985, 390892), (4948, 314815), (6185, 251852), (7970, 195446), (12370, 125926), (15940, 97723), (24740, 62963)]