81383900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{62603}}^1$

素因数の和:62630

約数の個数: 36

約数和(自身を含む): 190190952

約数和(自身を除く): 108807052

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 62603, 125206, 250412, 313015, 626030, 813839, 1252060, 1565075, 1627678, 3130150, 3255356, 4069195, 6260300, 8138390, 16276780, 20345975, 40691950, 81383900]

約数ペア:

[(1, 81383900), (2, 40691950), (4, 20345975), (5, 16276780), (10, 8138390), (13, 6260300), (20, 4069195), (25, 3255356), (26, 3130150), (50, 1627678), (52, 1565075), (65, 1252060), (100, 813839), (130, 626030), (260, 313015), (325, 250412), (650, 125206), (1300, 62603)]