18750745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 7376615

約数列:

[1, 5, 13, 17, 65, 71, 85, 221, 239, 355, 923, 1105, 1195, 1207, 3107, 4063, 4615, 6035, 15535, 15691, 16969, 20315, 52819, 78455, 84845, 220597, 264095, 288473, 1102985, 1442365, 3750149, 18750745]

約数ペア:

[(1, 18750745), (5, 3750149), (13, 1442365), (17, 1102985), (65, 288473), (71, 264095), (85, 220597), (221, 84845), (239, 78455), (355, 52819), (923, 20315), (1105, 16969), (1195, 15691), (1207, 15535), (3107, 6035), (4063, 4615)]