209525540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{347}}^1$

素因数の和:609

約数の個数: 96

約数和(自身を含む): 533191680

約数和(自身を除く): 323666140

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 227, 266, 347, 380, 454, 532, 665, 694, 908, 1135, 1330, 1388, 1589, 1735, 2270, 2429, 2660, 3178, 3470, 4313, 4540, 4858, 6356, 6593, 6940, 7945, 8626, 9716, 12145, 13186, 15890, 17252, 21565, 24290, 26372, 30191, 31780, 32965, 43130, 46151, 48580, 60382, 65930, 78769, 86260, 92302, 120764, 131860, 150955, 157538, 184604, 230755, 301910, 315076, 393845, 461510, 551383, 603820, 787690, 923020, 1102766, 1496611, 1575380, 2205532, 2756915, 2993222, 5513830, 5986444, 7483055, 10476277, 11027660, 14966110, 20952554, 29932220, 41905108, 52381385, 104762770, 209525540]

約数ペア:

[(1, 209525540), (2, 104762770), (4, 52381385), (5, 41905108), (7, 29932220), (10, 20952554), (14, 14966110), (19, 11027660), (20, 10476277), (28, 7483055), (35, 5986444), (38, 5513830), (70, 2993222), (76, 2756915), (95, 2205532), (133, 1575380), (140, 1496611), (190, 1102766), (227, 923020), (266, 787690), (347, 603820), (380, 551383), (454, 461510), (532, 393845), (665, 315076), (694, 301910), (908, 230755), (1135, 184604), (1330, 157538), (1388, 150955), (1589, 131860), (1735, 120764), (2270, 92302), (2429, 86260), (2660, 78769), (3178, 65930), (3470, 60382), (4313, 48580), (4540, 46151), (4858, 43130), (6356, 32965), (6593, 31780), (6940, 30191), (7945, 26372), (8626, 24290), (9716, 21565), (12145, 17252), (13186, 15890)]