20316225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 36158400

約数和(自身を除く): 15842175

約数列:

[1, 3, 5, 15, 19, 25, 53, 57, 75, 95, 159, 265, 269, 285, 475, 795, 807, 1007, 1325, 1345, 1425, 3021, 3975, 4035, 5035, 5111, 6725, 14257, 15105, 15333, 20175, 25175, 25555, 42771, 71285, 75525, 76665, 127775, 213855, 270883, 356425, 383325, 812649, 1069275, 1354415, 4063245, 6772075, 20316225]

約数ペア:

[(1, 20316225), (3, 6772075), (5, 4063245), (15, 1354415), (19, 1069275), (25, 812649), (53, 383325), (57, 356425), (75, 270883), (95, 213855), (159, 127775), (265, 76665), (269, 75525), (285, 71285), (475, 42771), (795, 25555), (807, 25175), (1007, 20175), (1325, 15333), (1345, 15105), (1425, 14257), (3021, 6725), (3975, 5111), (4035, 5035)]