20765880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1613

約数の個数: 96

約数和(自身を含む): 69357600

約数和(自身を除く): 48591720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1559, 1665, 2220, 2664, 3118, 3330, 4440, 4677, 6236, 6660, 7795, 9354, 12472, 13320, 14031, 15590, 18708, 23385, 28062, 31180, 37416, 46770, 56124, 57683, 62360, 70155, 93540, 112248, 115366, 140310, 173049, 187080, 230732, 280620, 288415, 346098, 461464, 519147, 561240, 576830, 692196, 865245, 1038294, 1153660, 1384392, 1730490, 2076588, 2307320, 2595735, 3460980, 4153176, 5191470, 6921960, 10382940, 20765880]

約数ペア:

[(1, 20765880), (2, 10382940), (3, 6921960), (4, 5191470), (5, 4153176), (6, 3460980), (8, 2595735), (9, 2307320), (10, 2076588), (12, 1730490), (15, 1384392), (18, 1153660), (20, 1038294), (24, 865245), (30, 692196), (36, 576830), (37, 561240), (40, 519147), (45, 461464), (60, 346098), (72, 288415), (74, 280620), (90, 230732), (111, 187080), (120, 173049), (148, 140310), (180, 115366), (185, 112248), (222, 93540), (296, 70155), (333, 62360), (360, 57683), (370, 56124), (444, 46770), (555, 37416), (666, 31180), (740, 28062), (888, 23385), (1110, 18708), (1332, 15590), (1480, 14031), (1559, 13320), (1665, 12472), (2220, 9354), (2664, 7795), (3118, 6660), (3330, 6236), (4440, 4677)]