278660135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{1063}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 373591680

約数和(自身を除く): 94931545

約数列:

[1, 5, 13, 37, 65, 109, 185, 481, 545, 1063, 1417, 2405, 4033, 5315, 7085, 13819, 20165, 39331, 52429, 69095, 115867, 196655, 262145, 511303, 579335, 1506271, 2556515, 4287079, 7531355, 21435395, 55732027, 278660135]

約数ペア:

[(1, 278660135), (5, 55732027), (13, 21435395), (37, 7531355), (65, 4287079), (109, 2556515), (185, 1506271), (481, 579335), (545, 511303), (1063, 262145), (1417, 196655), (2405, 115867), (4033, 69095), (5315, 52429), (7085, 39331), (13819, 20165)]