201728780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2689}}^1$

素因数の和:2751

約数の個数: 72

約数和(自身を含む): 480842880

約数和(自身を除く): 279114100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 2689, 3410, 3751, 5378, 6820, 7502, 10756, 13445, 15004, 18755, 26890, 29579, 37510, 53780, 59158, 75020, 83359, 118316, 147895, 166718, 295790, 325369, 333436, 416795, 591580, 650738, 833590, 916949, 1301476, 1626845, 1667180, 1833898, 3253690, 3667796, 4584745, 6507380, 9169490, 10086439, 18338980, 20172878, 40345756, 50432195, 100864390, 201728780]

約数ペア:

[(1, 201728780), (2, 100864390), (4, 50432195), (5, 40345756), (10, 20172878), (11, 18338980), (20, 10086439), (22, 9169490), (31, 6507380), (44, 4584745), (55, 3667796), (62, 3253690), (110, 1833898), (121, 1667180), (124, 1626845), (155, 1301476), (220, 916949), (242, 833590), (310, 650738), (341, 591580), (484, 416795), (605, 333436), (620, 325369), (682, 295790), (1210, 166718), (1364, 147895), (1705, 118316), (2420, 83359), (2689, 75020), (3410, 59158), (3751, 53780), (5378, 37510), (6820, 29579), (7502, 26890), (10756, 18755), (13445, 15004)]