28246270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 58189824

約数和(自身を除く): 29943554

約数列:

[1, 2, 5, 10, 13, 26, 31, 43, 62, 65, 86, 130, 155, 163, 215, 310, 326, 403, 430, 559, 806, 815, 1118, 1333, 1630, 2015, 2119, 2666, 2795, 4030, 4238, 5053, 5590, 6665, 7009, 10106, 10595, 13330, 14018, 17329, 21190, 25265, 34658, 35045, 50530, 65689, 70090, 86645, 91117, 131378, 173290, 182234, 217279, 328445, 434558, 455585, 656890, 911170, 1086395, 2172790, 2824627, 5649254, 14123135, 28246270]

約数ペア:

[(1, 28246270), (2, 14123135), (5, 5649254), (10, 2824627), (13, 2172790), (26, 1086395), (31, 911170), (43, 656890), (62, 455585), (65, 434558), (86, 328445), (130, 217279), (155, 182234), (163, 173290), (215, 131378), (310, 91117), (326, 86645), (403, 70090), (430, 65689), (559, 50530), (806, 35045), (815, 34658), (1118, 25265), (1333, 21190), (1630, 17329), (2015, 14018), (2119, 13330), (2666, 10595), (2795, 10106), (4030, 7009), (4238, 6665), (5053, 5590)]