81628680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97177}}^1$

素因数の和:97198

約数の個数: 64

約数和(自身を含む): 279872640

約数和(自身を除く): 198243960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97177, 194354, 291531, 388708, 485885, 583062, 680239, 777416, 971770, 1166124, 1360478, 1457655, 1943540, 2040717, 2332248, 2720956, 2915310, 3401195, 3887080, 4081434, 5441912, 5830620, 6802390, 8162868, 10203585, 11661240, 13604780, 16325736, 20407170, 27209560, 40814340, 81628680]

約数ペア:

[(1, 81628680), (2, 40814340), (3, 27209560), (4, 20407170), (5, 16325736), (6, 13604780), (7, 11661240), (8, 10203585), (10, 8162868), (12, 6802390), (14, 5830620), (15, 5441912), (20, 4081434), (21, 3887080), (24, 3401195), (28, 2915310), (30, 2720956), (35, 2332248), (40, 2040717), (42, 1943540), (56, 1457655), (60, 1360478), (70, 1166124), (84, 971770), (105, 777416), (120, 680239), (140, 583062), (168, 485885), (210, 388708), (280, 291531), (420, 194354), (840, 97177)]