20839200

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:499

約数の個数: 144

約数和(自身を含む): 71557920

約数和(自身を除く): 50718720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 32, 38, 40, 48, 50, 57, 60, 75, 76, 80, 95, 96, 100, 114, 120, 150, 152, 160, 190, 200, 228, 240, 285, 300, 304, 380, 400, 456, 457, 475, 480, 570, 600, 608, 760, 800, 912, 914, 950, 1140, 1200, 1371, 1425, 1520, 1824, 1828, 1900, 2280, 2285, 2400, 2742, 2850, 3040, 3656, 3800, 4560, 4570, 5484, 5700, 6855, 7312, 7600, 8683, 9120, 9140, 10968, 11400, 11425, 13710, 14624, 15200, 17366, 18280, 21936, 22800, 22850, 26049, 27420, 34275, 34732, 36560, 43415, 43872, 45600, 45700, 52098, 54840, 68550, 69464, 73120, 86830, 91400, 104196, 109680, 130245, 137100, 138928, 173660, 182800, 208392, 217075, 219360, 260490, 274200, 277856, 347320, 365600, 416784, 434150, 520980, 548400, 651225, 694640, 833568, 868300, 1041960, 1096800, 1302450, 1389280, 1736600, 2083920, 2604900, 3473200, 4167840, 5209800, 6946400, 10419600, 20839200]

約数ペア:

[(1, 20839200), (2, 10419600), (3, 6946400), (4, 5209800), (5, 4167840), (6, 3473200), (8, 2604900), (10, 2083920), (12, 1736600), (15, 1389280), (16, 1302450), (19, 1096800), (20, 1041960), (24, 868300), (25, 833568), (30, 694640), (32, 651225), (38, 548400), (40, 520980), (48, 434150), (50, 416784), (57, 365600), (60, 347320), (75, 277856), (76, 274200), (80, 260490), (95, 219360), (96, 217075), (100, 208392), (114, 182800), (120, 173660), (150, 138928), (152, 137100), (160, 130245), (190, 109680), (200, 104196), (228, 91400), (240, 86830), (285, 73120), (300, 69464), (304, 68550), (380, 54840), (400, 52098), (456, 45700), (457, 45600), (475, 43872), (480, 43415), (570, 36560), (600, 34732), (608, 34275), (760, 27420), (800, 26049), (912, 22850), (914, 22800), (950, 21936), (1140, 18280), (1200, 17366), (1371, 15200), (1425, 14624), (1520, 13710), (1824, 11425), (1828, 11400), (1900, 10968), (2280, 9140), (2285, 9120), (2400, 8683), (2742, 7600), (2850, 7312), (3040, 6855), (3656, 5700), (3800, 5484), (4560, 4570)]