2009403843820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{31379}}^1\times {\mathrm{52489}}^1$

素因数の和:83938

約数の個数: 48

約数和(自身を含む): 4289142664800

約数和(自身を除く): 2279738820980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 31379, 52489, 62758, 104978, 125516, 156895, 209956, 262445, 313790, 524890, 627580, 1049780, 1914119, 3201829, 3828238, 6403658, 7656476, 9570595, 12807316, 16009145, 19141190, 32018290, 38282380, 64036580, 1647052331, 3294104662, 6588209324, 8235261655, 16470523310, 32941046620, 100470192191, 200940384382, 401880768764, 502350960955, 1004701921910, 2009403843820]

約数ペア:

[(1, 2009403843820), (2, 1004701921910), (4, 502350960955), (5, 401880768764), (10, 200940384382), (20, 100470192191), (61, 32941046620), (122, 16470523310), (244, 8235261655), (305, 6588209324), (610, 3294104662), (1220, 1647052331), (31379, 64036580), (52489, 38282380), (62758, 32018290), (104978, 19141190), (125516, 16009145), (156895, 12807316), (209956, 9570595), (262445, 7656476), (313790, 6403658), (524890, 3828238), (627580, 3201829), (1049780, 1914119)]