209717366980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3259}}^1\times {\mathrm{26591}}^1$

素因数の和:29881

約数の個数: 72

約数和(自身を含む): 484249893120

約数和(自身を除く): 274532526140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3259, 6518, 13036, 16295, 26591, 32590, 35849, 53182, 65180, 71698, 106364, 132955, 143396, 179245, 265910, 292501, 358490, 394339, 531820, 585002, 716980, 788678, 1170004, 1462505, 1577356, 1971695, 2925010, 3217511, 3943390, 5850020, 6435022, 7886780, 12870044, 16087555, 32175110, 64350220, 86660069, 173320138, 346640276, 433300345, 866600690, 953260759, 1733201380, 1906521518, 3813043036, 4766303795, 9532607590, 10485868349, 19065215180, 20971736698, 41943473396, 52429341745, 104858683490, 209717366980]

約数ペア:

[(1, 209717366980), (2, 104858683490), (4, 52429341745), (5, 41943473396), (10, 20971736698), (11, 19065215180), (20, 10485868349), (22, 9532607590), (44, 4766303795), (55, 3813043036), (110, 1906521518), (121, 1733201380), (220, 953260759), (242, 866600690), (484, 433300345), (605, 346640276), (1210, 173320138), (2420, 86660069), (3259, 64350220), (6518, 32175110), (13036, 16087555), (16295, 12870044), (26591, 7886780), (32590, 6435022), (35849, 5850020), (53182, 3943390), (65180, 3217511), (71698, 2925010), (106364, 1971695), (132955, 1577356), (143396, 1462505), (179245, 1170004), (265910, 788678), (292501, 716980), (358490, 585002), (394339, 531820)]