20165600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 60808608

約数和(自身を除く): 40643008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 277, 280, 325, 350, 364, 400, 416, 455, 520, 554, 560, 650, 700, 728, 800, 910, 1040, 1108, 1120, 1300, 1385, 1400, 1456, 1820, 1939, 2080, 2216, 2275, 2600, 2770, 2800, 2912, 3601, 3640, 3878, 4432, 4550, 5200, 5540, 5600, 6925, 7202, 7280, 7756, 8864, 9100, 9695, 10400, 11080, 13850, 14404, 14560, 15512, 18005, 18200, 19390, 22160, 25207, 27700, 28808, 31024, 36010, 36400, 38780, 44320, 48475, 50414, 55400, 57616, 62048, 72020, 72800, 77560, 90025, 96950, 100828, 110800, 115232, 126035, 144040, 155120, 180050, 193900, 201656, 221600, 252070, 288080, 310240, 360100, 387800, 403312, 504140, 576160, 630175, 720200, 775600, 806624, 1008280, 1260350, 1440400, 1551200, 2016560, 2520700, 2880800, 4033120, 5041400, 10082800, 20165600]

約数ペア:

[(1, 20165600), (2, 10082800), (4, 5041400), (5, 4033120), (7, 2880800), (8, 2520700), (10, 2016560), (13, 1551200), (14, 1440400), (16, 1260350), (20, 1008280), (25, 806624), (26, 775600), (28, 720200), (32, 630175), (35, 576160), (40, 504140), (50, 403312), (52, 387800), (56, 360100), (65, 310240), (70, 288080), (80, 252070), (91, 221600), (100, 201656), (104, 193900), (112, 180050), (130, 155120), (140, 144040), (160, 126035), (175, 115232), (182, 110800), (200, 100828), (208, 96950), (224, 90025), (260, 77560), (277, 72800), (280, 72020), (325, 62048), (350, 57616), (364, 55400), (400, 50414), (416, 48475), (455, 44320), (520, 38780), (554, 36400), (560, 36010), (650, 31024), (700, 28808), (728, 27700), (800, 25207), (910, 22160), (1040, 19390), (1108, 18200), (1120, 18005), (1300, 15512), (1385, 14560), (1400, 14404), (1456, 13850), (1820, 11080), (1939, 10400), (2080, 9695), (2216, 9100), (2275, 8864), (2600, 7756), (2770, 7280), (2800, 7202), (2912, 6925), (3601, 5600), (3640, 5540), (3878, 5200), (4432, 4550)]