388310960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{156577}}^1$

素因数の和:156621

約数の個数: 40

約数和(自身を含む): 931952256

約数和(自身を除く): 543641296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 156577, 313154, 626308, 782885, 1252616, 1565770, 2505232, 3131540, 4853887, 6263080, 9707774, 12526160, 19415548, 24269435, 38831096, 48538870, 77662192, 97077740, 194155480, 388310960]

約数ペア:

[(1, 388310960), (2, 194155480), (4, 97077740), (5, 77662192), (8, 48538870), (10, 38831096), (16, 24269435), (20, 19415548), (31, 12526160), (40, 9707774), (62, 6263080), (80, 4853887), (124, 3131540), (155, 2505232), (248, 1565770), (310, 1252616), (496, 782885), (620, 626308), (1240, 313154), (2480, 156577)]