20961750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1510

約数の個数: 64

約数和(自身を含む): 55111680

約数和(自身を除く): 34149930

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 285, 375, 475, 570, 750, 950, 1425, 1471, 2375, 2850, 2942, 4413, 4750, 7125, 7355, 8826, 14250, 14710, 22065, 27949, 36775, 44130, 55898, 73550, 83847, 110325, 139745, 167694, 183875, 220650, 279490, 367750, 419235, 551625, 698725, 838470, 1103250, 1397450, 2096175, 3493625, 4192350, 6987250, 10480875, 20961750]

約数ペア:

[(1, 20961750), (2, 10480875), (3, 6987250), (5, 4192350), (6, 3493625), (10, 2096175), (15, 1397450), (19, 1103250), (25, 838470), (30, 698725), (38, 551625), (50, 419235), (57, 367750), (75, 279490), (95, 220650), (114, 183875), (125, 167694), (150, 139745), (190, 110325), (250, 83847), (285, 73550), (375, 55898), (475, 44130), (570, 36775), (750, 27949), (950, 22065), (1425, 14710), (1471, 14250), (2375, 8826), (2850, 7355), (2942, 7125), (4413, 4750)]