31413850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1615

約数の個数: 48

約数和(自身を含む): 64995840

約数和(自身を除く): 33581990

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 1559, 2015, 3118, 4030, 7795, 10075, 15590, 20150, 20267, 38975, 40534, 48329, 77950, 96658, 101335, 202670, 241645, 483290, 506675, 628277, 1013350, 1208225, 1256554, 2416450, 3141385, 6282770, 15706925, 31413850]

約数ペア:

[(1, 31413850), (2, 15706925), (5, 6282770), (10, 3141385), (13, 2416450), (25, 1256554), (26, 1208225), (31, 1013350), (50, 628277), (62, 506675), (65, 483290), (130, 241645), (155, 202670), (310, 101335), (325, 96658), (403, 77950), (650, 48329), (775, 40534), (806, 38975), (1550, 20267), (1559, 20150), (2015, 15590), (3118, 10075), (4030, 7795)]