20499600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1553}}^1$

素因数の和:1585

約数の個数: 120

約数和(自身を含む): 71682912

約数和(自身を除く): 51183312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 100, 110, 120, 132, 150, 165, 176, 200, 220, 240, 264, 275, 300, 330, 400, 440, 528, 550, 600, 660, 825, 880, 1100, 1200, 1320, 1553, 1650, 2200, 2640, 3106, 3300, 4400, 4659, 6212, 6600, 7765, 9318, 12424, 13200, 15530, 17083, 18636, 23295, 24848, 31060, 34166, 37272, 38825, 46590, 51249, 62120, 68332, 74544, 77650, 85415, 93180, 102498, 116475, 124240, 136664, 155300, 170830, 186360, 204996, 232950, 256245, 273328, 310600, 341660, 372720, 409992, 427075, 465900, 512490, 621200, 683320, 819984, 854150, 931800, 1024980, 1281225, 1366640, 1708300, 1863600, 2049960, 2562450, 3416600, 4099920, 5124900, 6833200, 10249800, 20499600]

約数ペア:

[(1, 20499600), (2, 10249800), (3, 6833200), (4, 5124900), (5, 4099920), (6, 3416600), (8, 2562450), (10, 2049960), (11, 1863600), (12, 1708300), (15, 1366640), (16, 1281225), (20, 1024980), (22, 931800), (24, 854150), (25, 819984), (30, 683320), (33, 621200), (40, 512490), (44, 465900), (48, 427075), (50, 409992), (55, 372720), (60, 341660), (66, 310600), (75, 273328), (80, 256245), (88, 232950), (100, 204996), (110, 186360), (120, 170830), (132, 155300), (150, 136664), (165, 124240), (176, 116475), (200, 102498), (220, 93180), (240, 85415), (264, 77650), (275, 74544), (300, 68332), (330, 62120), (400, 51249), (440, 46590), (528, 38825), (550, 37272), (600, 34166), (660, 31060), (825, 24848), (880, 23295), (1100, 18636), (1200, 17083), (1320, 15530), (1553, 13200), (1650, 12424), (2200, 9318), (2640, 7765), (3106, 6600), (3300, 6212), (4400, 4659)]