28907450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:360

約数の個数: 72

約数和(自身を含む): 63719136

約数和(自身を除く): 34811686

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 169, 275, 286, 311, 325, 338, 550, 622, 650, 715, 845, 1430, 1555, 1690, 1859, 3110, 3421, 3575, 3718, 4043, 4225, 6842, 7150, 7775, 8086, 8450, 9295, 15550, 17105, 18590, 20215, 34210, 40430, 44473, 46475, 52559, 85525, 88946, 92950, 101075, 105118, 171050, 202150, 222365, 262795, 444730, 525590, 578149, 1111825, 1156298, 1313975, 2223650, 2627950, 2890745, 5781490, 14453725, 28907450]

約数ペア:

[(1, 28907450), (2, 14453725), (5, 5781490), (10, 2890745), (11, 2627950), (13, 2223650), (22, 1313975), (25, 1156298), (26, 1111825), (50, 578149), (55, 525590), (65, 444730), (110, 262795), (130, 222365), (143, 202150), (169, 171050), (275, 105118), (286, 101075), (311, 92950), (325, 88946), (338, 85525), (550, 52559), (622, 46475), (650, 44473), (715, 40430), (845, 34210), (1430, 20215), (1555, 18590), (1690, 17105), (1859, 15550), (3110, 9295), (3421, 8450), (3575, 8086), (3718, 7775), (4043, 7150), (4225, 6842)]