20745180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:996

約数の個数: 96

約数和(自身を含む): 66185280

約数和(自身を除く): 45440100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 82, 90, 108, 123, 135, 164, 180, 205, 246, 270, 369, 410, 492, 540, 615, 738, 820, 937, 1107, 1230, 1476, 1845, 1874, 2214, 2460, 2811, 3690, 3748, 4428, 4685, 5535, 5622, 7380, 8433, 9370, 11070, 11244, 14055, 16866, 18740, 22140, 25299, 28110, 33732, 38417, 42165, 50598, 56220, 76834, 84330, 101196, 115251, 126495, 153668, 168660, 192085, 230502, 252990, 345753, 384170, 461004, 505980, 576255, 691506, 768340, 1037259, 1152510, 1383012, 1728765, 2074518, 2305020, 3457530, 4149036, 5186295, 6915060, 10372590, 20745180]

約数ペア:

[(1, 20745180), (2, 10372590), (3, 6915060), (4, 5186295), (5, 4149036), (6, 3457530), (9, 2305020), (10, 2074518), (12, 1728765), (15, 1383012), (18, 1152510), (20, 1037259), (27, 768340), (30, 691506), (36, 576255), (41, 505980), (45, 461004), (54, 384170), (60, 345753), (82, 252990), (90, 230502), (108, 192085), (123, 168660), (135, 153668), (164, 126495), (180, 115251), (205, 101196), (246, 84330), (270, 76834), (369, 56220), (410, 50598), (492, 42165), (540, 38417), (615, 33732), (738, 28110), (820, 25299), (937, 22140), (1107, 18740), (1230, 16866), (1476, 14055), (1845, 11244), (1874, 11070), (2214, 9370), (2460, 8433), (2811, 7380), (3690, 5622), (3748, 5535), (4428, 4685)]