260256700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1201}}^1$

素因数の和:1423

約数の個数: 72

約数和(自身を含む): 619741584

約数和(自身を除く): 359484884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 197, 220, 275, 394, 550, 788, 985, 1100, 1201, 1970, 2167, 2402, 3940, 4334, 4804, 4925, 6005, 8668, 9850, 10835, 12010, 13211, 19700, 21670, 24020, 26422, 30025, 43340, 52844, 54175, 60050, 66055, 108350, 120100, 132110, 216700, 236597, 264220, 330275, 473194, 660550, 946388, 1182985, 1321100, 2365970, 2602567, 4731940, 5205134, 5914925, 10410268, 11829850, 13012835, 23659700, 26025670, 52051340, 65064175, 130128350, 260256700]

約数ペア:

[(1, 260256700), (2, 130128350), (4, 65064175), (5, 52051340), (10, 26025670), (11, 23659700), (20, 13012835), (22, 11829850), (25, 10410268), (44, 5914925), (50, 5205134), (55, 4731940), (100, 2602567), (110, 2365970), (197, 1321100), (220, 1182985), (275, 946388), (394, 660550), (550, 473194), (788, 330275), (985, 264220), (1100, 236597), (1201, 216700), (1970, 132110), (2167, 120100), (2402, 108350), (3940, 66055), (4334, 60050), (4804, 54175), (4925, 52844), (6005, 43340), (8668, 30025), (9850, 26422), (10835, 24020), (12010, 21670), (13211, 19700)]