20145580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11069}}^1$

素因数の和:11098

約数の個数: 48

約数和(自身を含む): 52073280

約数和(自身を除く): 31927700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11069, 22138, 44276, 55345, 77483, 110690, 143897, 154966, 221380, 287794, 309932, 387415, 575588, 719485, 774830, 1007279, 1438970, 1549660, 2014558, 2877940, 4029116, 5036395, 10072790, 20145580]

約数ペア:

[(1, 20145580), (2, 10072790), (4, 5036395), (5, 4029116), (7, 2877940), (10, 2014558), (13, 1549660), (14, 1438970), (20, 1007279), (26, 774830), (28, 719485), (35, 575588), (52, 387415), (65, 309932), (70, 287794), (91, 221380), (130, 154966), (140, 143897), (182, 110690), (260, 77483), (364, 55345), (455, 44276), (910, 22138), (1820, 11069)]