20558760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 45796440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 71, 76, 95, 114, 120, 127, 142, 152, 190, 213, 228, 254, 284, 285, 355, 380, 381, 426, 456, 508, 568, 570, 635, 710, 760, 762, 852, 1016, 1065, 1140, 1270, 1349, 1420, 1524, 1704, 1905, 2130, 2280, 2413, 2540, 2698, 2840, 3048, 3810, 4047, 4260, 4826, 5080, 5396, 6745, 7239, 7620, 8094, 8520, 9017, 9652, 10792, 12065, 13490, 14478, 15240, 16188, 18034, 19304, 20235, 24130, 26980, 27051, 28956, 32376, 36068, 36195, 40470, 45085, 48260, 53960, 54102, 57912, 72136, 72390, 80940, 90170, 96520, 108204, 135255, 144780, 161880, 171323, 180340, 216408, 270510, 289560, 342646, 360680, 513969, 541020, 685292, 856615, 1027938, 1082040, 1370584, 1713230, 2055876, 2569845, 3426460, 4111752, 5139690, 6852920, 10279380, 20558760]

約数ペア:

[(1, 20558760), (2, 10279380), (3, 6852920), (4, 5139690), (5, 4111752), (6, 3426460), (8, 2569845), (10, 2055876), (12, 1713230), (15, 1370584), (19, 1082040), (20, 1027938), (24, 856615), (30, 685292), (38, 541020), (40, 513969), (57, 360680), (60, 342646), (71, 289560), (76, 270510), (95, 216408), (114, 180340), (120, 171323), (127, 161880), (142, 144780), (152, 135255), (190, 108204), (213, 96520), (228, 90170), (254, 80940), (284, 72390), (285, 72136), (355, 57912), (380, 54102), (381, 53960), (426, 48260), (456, 45085), (508, 40470), (568, 36195), (570, 36068), (635, 32376), (710, 28956), (760, 27051), (762, 26980), (852, 24130), (1016, 20235), (1065, 19304), (1140, 18034), (1270, 16188), (1349, 15240), (1420, 14478), (1524, 13490), (1704, 12065), (1905, 10792), (2130, 9652), (2280, 9017), (2413, 8520), (2540, 8094), (2698, 7620), (2840, 7239), (3048, 6745), (3810, 5396), (4047, 5080), (4260, 4826)]