78456644

素因数分解:

$2^2\times 7^2\times {\mathrm{613}}^1\times {\mathrm{653}}^1$

素因数の和:1284

約数の個数: 36

約数和(自身を含む): 160220844

約数和(自身を除く): 81764200

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 613, 653, 1226, 1306, 2452, 2612, 4291, 4571, 8582, 9142, 17164, 18284, 30037, 31997, 60074, 63994, 120148, 127988, 400289, 800578, 1601156, 2802023, 5604046, 11208092, 19614161, 39228322, 78456644]

約数ペア:

[(1, 78456644), (2, 39228322), (4, 19614161), (7, 11208092), (14, 5604046), (28, 2802023), (49, 1601156), (98, 800578), (196, 400289), (613, 127988), (653, 120148), (1226, 63994), (1306, 60074), (2452, 31997), (2612, 30037), (4291, 18284), (4571, 17164), (8582, 9142)]