20091500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 51734592

約数和(自身を除く): 31643092

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 125, 130, 143, 220, 250, 260, 275, 281, 286, 325, 500, 550, 562, 572, 650, 715, 1100, 1124, 1300, 1375, 1405, 1430, 1625, 2750, 2810, 2860, 3091, 3250, 3575, 3653, 5500, 5620, 6182, 6500, 7025, 7150, 7306, 12364, 14050, 14300, 14612, 15455, 17875, 18265, 28100, 30910, 35125, 35750, 36530, 40183, 61820, 70250, 71500, 73060, 77275, 80366, 91325, 140500, 154550, 160732, 182650, 200915, 309100, 365300, 386375, 401830, 456625, 772750, 803660, 913250, 1004575, 1545500, 1826500, 2009150, 4018300, 5022875, 10045750, 20091500]

約数ペア:

[(1, 20091500), (2, 10045750), (4, 5022875), (5, 4018300), (10, 2009150), (11, 1826500), (13, 1545500), (20, 1004575), (22, 913250), (25, 803660), (26, 772750), (44, 456625), (50, 401830), (52, 386375), (55, 365300), (65, 309100), (100, 200915), (110, 182650), (125, 160732), (130, 154550), (143, 140500), (220, 91325), (250, 80366), (260, 77275), (275, 73060), (281, 71500), (286, 70250), (325, 61820), (500, 40183), (550, 36530), (562, 35750), (572, 35125), (650, 30910), (715, 28100), (1100, 18265), (1124, 17875), (1300, 15455), (1375, 14612), (1405, 14300), (1430, 14050), (1625, 12364), (2750, 7306), (2810, 7150), (2860, 7025), (3091, 6500), (3250, 6182), (3575, 5620), (3653, 5500)]