628408580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{515089}}^1$

素因数の和:515159

約数の個数: 24

約数和(自身を含む): 1341294360

約数和(自身を除く): 712885780

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 515089, 1030178, 2060356, 2575445, 5150890, 10301780, 31420429, 62840858, 125681716, 157102145, 314204290, 628408580]

約数ペア:

[(1, 628408580), (2, 314204290), (4, 157102145), (5, 125681716), (10, 62840858), (20, 31420429), (61, 10301780), (122, 5150890), (244, 2575445), (305, 2060356), (610, 1030178), (1220, 515089)]