16989940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2663}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 23289740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 2663, 3190, 5326, 6380, 10652, 13315, 26630, 29293, 53260, 58586, 77227, 117172, 146465, 154454, 292930, 308908, 386135, 585860, 772270, 849497, 1544540, 1698994, 3397988, 4247485, 8494970, 16989940]

約数ペア:

[(1, 16989940), (2, 8494970), (4, 4247485), (5, 3397988), (10, 1698994), (11, 1544540), (20, 849497), (22, 772270), (29, 585860), (44, 386135), (55, 308908), (58, 292930), (110, 154454), (116, 146465), (145, 117172), (220, 77227), (290, 58586), (319, 53260), (580, 29293), (638, 26630), (1276, 13315), (1595, 10652), (2663, 6380), (3190, 5326)]