28705464

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{947}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 78010920

約数和(自身を除く): 49305456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 842, 947, 1263, 1684, 1894, 2526, 2841, 3368, 3788, 3789, 5052, 5682, 7576, 7578, 8523, 10104, 11364, 15156, 17046, 22728, 30312, 34092, 68184, 398687, 797374, 1196061, 1594748, 2392122, 3189496, 3588183, 4784244, 7176366, 9568488, 14352732, 28705464]

約数ペア:

[(1, 28705464), (2, 14352732), (3, 9568488), (4, 7176366), (6, 4784244), (8, 3588183), (9, 3189496), (12, 2392122), (18, 1594748), (24, 1196061), (36, 797374), (72, 398687), (421, 68184), (842, 34092), (947, 30312), (1263, 22728), (1684, 17046), (1894, 15156), (2526, 11364), (2841, 10104), (3368, 8523), (3788, 7578), (3789, 7576), (5052, 5682)]