18758875

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 32

約数和(自身を含む): 24920064

約数和(自身を除く): 6161189

約数列:

[1, 5, 25, 31, 47, 103, 125, 155, 235, 515, 775, 1175, 1457, 2575, 3193, 3875, 4841, 5875, 7285, 12875, 15965, 24205, 36425, 79825, 121025, 150071, 182125, 399125, 605125, 750355, 3751775, 18758875]

約数ペア:

[(1, 18758875), (5, 3751775), (25, 750355), (31, 605125), (47, 399125), (103, 182125), (125, 150071), (155, 121025), (235, 79825), (515, 36425), (775, 24205), (1175, 15965), (1457, 12875), (2575, 7285), (3193, 5875), (3875, 4841)]