20436075

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 41783040

約数和(自身を除く): 21346965

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 165, 207, 225, 253, 275, 345, 359, 495, 575, 759, 825, 1035, 1077, 1265, 1725, 1795, 2277, 2475, 3231, 3795, 3949, 5175, 5385, 6325, 8257, 8975, 11385, 11847, 16155, 18975, 19745, 24771, 26925, 35541, 41285, 56925, 59235, 74313, 80775, 90827, 98725, 123855, 177705, 206425, 272481, 296175, 371565, 454135, 619275, 817443, 888525, 1362405, 1857825, 2270675, 4087215, 6812025, 20436075]

約数ペア:

[(1, 20436075), (3, 6812025), (5, 4087215), (9, 2270675), (11, 1857825), (15, 1362405), (23, 888525), (25, 817443), (33, 619275), (45, 454135), (55, 371565), (69, 296175), (75, 272481), (99, 206425), (115, 177705), (165, 123855), (207, 98725), (225, 90827), (253, 80775), (275, 74313), (345, 59235), (359, 56925), (495, 41285), (575, 35541), (759, 26925), (825, 24771), (1035, 19745), (1077, 18975), (1265, 16155), (1725, 11847), (1795, 11385), (2277, 8975), (2475, 8257), (3231, 6325), (3795, 5385), (3949, 5175)]