80201718

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 185008320

約数和(自身を除く): 104806602

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 137, 222, 274, 293, 333, 411, 586, 666, 822, 879, 999, 1233, 1758, 1998, 2466, 2637, 3699, 5069, 5274, 7398, 7911, 10138, 10841, 15207, 15822, 21682, 30414, 32523, 40141, 45621, 65046, 80282, 91242, 97569, 120423, 136863, 195138, 240846, 273726, 292707, 361269, 585414, 722538, 1083807, 1485217, 2167614, 2970434, 4455651, 8911302, 13366953, 26733906, 40100859, 80201718]

約数ペア:

[(1, 80201718), (2, 40100859), (3, 26733906), (6, 13366953), (9, 8911302), (18, 4455651), (27, 2970434), (37, 2167614), (54, 1485217), (74, 1083807), (111, 722538), (137, 585414), (222, 361269), (274, 292707), (293, 273726), (333, 240846), (411, 195138), (586, 136863), (666, 120423), (822, 97569), (879, 91242), (999, 80282), (1233, 65046), (1758, 45621), (1998, 40141), (2466, 32523), (2637, 30414), (3699, 21682), (5069, 15822), (5274, 15207), (7398, 10841), (7911, 10138)]