28538748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{421}}^1$

素因数の和:707

約数の個数: 72

約数和(自身を含む): 82948320

約数和(自身を除く): 54409572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 269, 421, 538, 807, 842, 1076, 1263, 1614, 1684, 1883, 2421, 2526, 2947, 3228, 3766, 3789, 4842, 5052, 5649, 5894, 7532, 7578, 8841, 9684, 11298, 11788, 15156, 16947, 17682, 22596, 26523, 33894, 35364, 53046, 67788, 106092, 113249, 226498, 339747, 452996, 679494, 792743, 1019241, 1358988, 1585486, 2038482, 2378229, 3170972, 4076964, 4756458, 7134687, 9512916, 14269374, 28538748]

約数ペア:

[(1, 28538748), (2, 14269374), (3, 9512916), (4, 7134687), (6, 4756458), (7, 4076964), (9, 3170972), (12, 2378229), (14, 2038482), (18, 1585486), (21, 1358988), (28, 1019241), (36, 792743), (42, 679494), (63, 452996), (84, 339747), (126, 226498), (252, 113249), (269, 106092), (421, 67788), (538, 53046), (807, 35364), (842, 33894), (1076, 26523), (1263, 22596), (1614, 17682), (1684, 16947), (1883, 15156), (2421, 11788), (2526, 11298), (2947, 9684), (3228, 8841), (3766, 7578), (3789, 7532), (4842, 5894), (5052, 5649)]