280051785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{983}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 524369664

約数和(自身を除く): 244317879

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 487, 585, 983, 1461, 2435, 2949, 4383, 4915, 6331, 7305, 8847, 12779, 14745, 18993, 21915, 31655, 38337, 44235, 56979, 63895, 94965, 115011, 191685, 284895, 478721, 575055, 1436163, 2393605, 4308489, 6223373, 7180815, 18670119, 21542445, 31116865, 56010357, 93350595, 280051785]

約数ペア:

[(1, 280051785), (3, 93350595), (5, 56010357), (9, 31116865), (13, 21542445), (15, 18670119), (39, 7180815), (45, 6223373), (65, 4308489), (117, 2393605), (195, 1436163), (487, 575055), (585, 478721), (983, 284895), (1461, 191685), (2435, 115011), (2949, 94965), (4383, 63895), (4915, 56979), (6331, 44235), (7305, 38337), (8847, 31655), (12779, 21915), (14745, 18993)]