20609400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{701}}^1$

素因数の和:734

約数の個数: 144

約数和(自身を含む): 74426040

約数和(自身を除く): 53816640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 701, 735, 840, 980, 1050, 1176, 1225, 1400, 1402, 1470, 1960, 2100, 2103, 2450, 2804, 2940, 3505, 3675, 4200, 4206, 4900, 4907, 5608, 5880, 7010, 7350, 8412, 9800, 9814, 10515, 14020, 14700, 14721, 16824, 17525, 19628, 21030, 24535, 28040, 29400, 29442, 34349, 35050, 39256, 42060, 49070, 52575, 58884, 68698, 70100, 73605, 84120, 98140, 103047, 105150, 117768, 122675, 137396, 140200, 147210, 171745, 196280, 206094, 210300, 245350, 274792, 294420, 343490, 368025, 412188, 420600, 490700, 515235, 588840, 686980, 736050, 824376, 858725, 981400, 1030470, 1373960, 1472100, 1717450, 2060940, 2576175, 2944200, 3434900, 4121880, 5152350, 6869800, 10304700, 20609400]

約数ペア:

[(1, 20609400), (2, 10304700), (3, 6869800), (4, 5152350), (5, 4121880), (6, 3434900), (7, 2944200), (8, 2576175), (10, 2060940), (12, 1717450), (14, 1472100), (15, 1373960), (20, 1030470), (21, 981400), (24, 858725), (25, 824376), (28, 736050), (30, 686980), (35, 588840), (40, 515235), (42, 490700), (49, 420600), (50, 412188), (56, 368025), (60, 343490), (70, 294420), (75, 274792), (84, 245350), (98, 210300), (100, 206094), (105, 196280), (120, 171745), (140, 147210), (147, 140200), (150, 137396), (168, 122675), (175, 117768), (196, 105150), (200, 103047), (210, 98140), (245, 84120), (280, 73605), (294, 70100), (300, 68698), (350, 58884), (392, 52575), (420, 49070), (490, 42060), (525, 39256), (588, 35050), (600, 34349), (700, 29442), (701, 29400), (735, 28040), (840, 24535), (980, 21030), (1050, 19628), (1176, 17525), (1225, 16824), (1400, 14721), (1402, 14700), (1470, 14020), (1960, 10515), (2100, 9814), (2103, 9800), (2450, 8412), (2804, 7350), (2940, 7010), (3505, 5880), (3675, 5608), (4200, 4907), (4206, 4900)]