204851640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{243871}}^1$

素因数の和:243892

約数の個数: 64

約数和(自身を含む): 702351360

約数和(自身を除く): 497499720

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, 243871, 487742, 731613, 975484, 1219355, 1463226, 1707097, 1950968, 2438710, 2926452, 3414194, 3658065, 4877420, 5121291, 5852904, 6828388, 7316130, 8535485, 9754840, 10242582, 13656776, 14632260, 17070970, 20485164, 25606455, 29264520, 34141940, 40970328, 51212910, 68283880, 102425820, 204851640]

約数ペア:

[(1, 204851640), (2, 102425820), (3, 68283880), (4, 51212910), (5, 40970328), (6, 34141940), (7, 29264520), (8, 25606455), (10, 20485164), (12, 17070970), (14, 14632260), (15, 13656776), (20, 10242582), (21, 9754840), (24, 8535485), (28, 7316130), (30, 6828388), (35, 5852904), (40, 5121291), (42, 4877420), (56, 3658065), (60, 3414194), (70, 2926452), (84, 2438710), (105, 1950968), (120, 1707097), (140, 1463226), (168, 1219355), (210, 975484), (280, 731613), (420, 487742), (840, 243871)]