20938060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7321}}^1$

素因数の和:7354

約数の個数: 48

約数和(自身を含む): 51664032

約数和(自身を除く): 30725972

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7321, 14642, 29284, 36605, 73210, 80531, 95173, 146420, 161062, 190346, 322124, 380692, 402655, 475865, 805310, 951730, 1046903, 1610620, 1903460, 2093806, 4187612, 5234515, 10469030, 20938060]

約数ペア:

[(1, 20938060), (2, 10469030), (4, 5234515), (5, 4187612), (10, 2093806), (11, 1903460), (13, 1610620), (20, 1046903), (22, 951730), (26, 805310), (44, 475865), (52, 402655), (55, 380692), (65, 322124), (110, 190346), (130, 161062), (143, 146420), (220, 95173), (260, 80531), (286, 73210), (572, 36605), (715, 29284), (1430, 14642), (2860, 7321)]