20867700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:566

約数の個数: 144

約数和(自身を含む): 72773120

約数和(自身を除く): 51905420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 30, 35, 38, 42, 50, 57, 60, 70, 75, 76, 84, 95, 100, 105, 114, 133, 140, 150, 175, 190, 210, 228, 266, 285, 300, 350, 380, 399, 420, 475, 523, 525, 532, 570, 665, 700, 798, 950, 1046, 1050, 1140, 1330, 1425, 1569, 1596, 1900, 1995, 2092, 2100, 2615, 2660, 2850, 3138, 3325, 3661, 3990, 5230, 5700, 6276, 6650, 7322, 7845, 7980, 9937, 9975, 10460, 10983, 13075, 13300, 14644, 15690, 18305, 19874, 19950, 21966, 26150, 29811, 31380, 36610, 39225, 39748, 39900, 43932, 49685, 52300, 54915, 59622, 69559, 73220, 78450, 91525, 99370, 109830, 119244, 139118, 149055, 156900, 183050, 198740, 208677, 219660, 248425, 274575, 278236, 298110, 347795, 366100, 417354, 496850, 549150, 596220, 695590, 745275, 834708, 993700, 1043385, 1098300, 1391180, 1490550, 1738975, 2086770, 2981100, 3477950, 4173540, 5216925, 6955900, 10433850, 20867700]

約数ペア:

[(1, 20867700), (2, 10433850), (3, 6955900), (4, 5216925), (5, 4173540), (6, 3477950), (7, 2981100), (10, 2086770), (12, 1738975), (14, 1490550), (15, 1391180), (19, 1098300), (20, 1043385), (21, 993700), (25, 834708), (28, 745275), (30, 695590), (35, 596220), (38, 549150), (42, 496850), (50, 417354), (57, 366100), (60, 347795), (70, 298110), (75, 278236), (76, 274575), (84, 248425), (95, 219660), (100, 208677), (105, 198740), (114, 183050), (133, 156900), (140, 149055), (150, 139118), (175, 119244), (190, 109830), (210, 99370), (228, 91525), (266, 78450), (285, 73220), (300, 69559), (350, 59622), (380, 54915), (399, 52300), (420, 49685), (475, 43932), (523, 39900), (525, 39748), (532, 39225), (570, 36610), (665, 31380), (700, 29811), (798, 26150), (950, 21966), (1046, 19950), (1050, 19874), (1140, 18305), (1330, 15690), (1425, 14644), (1569, 13300), (1596, 13075), (1900, 10983), (1995, 10460), (2092, 9975), (2100, 9937), (2615, 7980), (2660, 7845), (2850, 7322), (3138, 6650), (3325, 6276), (3661, 5700), (3990, 5230)]