20212080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:303

約数の個数: 160

約数和(自身を含む): 73281024

約数和(自身を除く): 53068944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 53, 56, 60, 70, 80, 84, 105, 106, 112, 120, 140, 159, 168, 210, 212, 227, 240, 265, 280, 318, 336, 371, 420, 424, 454, 530, 560, 636, 681, 742, 795, 840, 848, 908, 1060, 1113, 1135, 1272, 1362, 1484, 1589, 1590, 1680, 1816, 1855, 2120, 2226, 2270, 2544, 2724, 2968, 3178, 3180, 3405, 3632, 3710, 4240, 4452, 4540, 4767, 5448, 5565, 5936, 6356, 6360, 6810, 7420, 7945, 8904, 9080, 9534, 10896, 11130, 12031, 12712, 12720, 13620, 14840, 15890, 17808, 18160, 19068, 22260, 23835, 24062, 25424, 27240, 29680, 31780, 36093, 38136, 44520, 47670, 48124, 54480, 60155, 63560, 72186, 76272, 84217, 89040, 95340, 96248, 120310, 127120, 144372, 168434, 180465, 190680, 192496, 240620, 252651, 288744, 336868, 360930, 381360, 421085, 481240, 505302, 577488, 673736, 721860, 842170, 962480, 1010604, 1263255, 1347472, 1443720, 1684340, 2021208, 2526510, 2887440, 3368680, 4042416, 5053020, 6737360, 10106040, 20212080]

約数ペア:

[(1, 20212080), (2, 10106040), (3, 6737360), (4, 5053020), (5, 4042416), (6, 3368680), (7, 2887440), (8, 2526510), (10, 2021208), (12, 1684340), (14, 1443720), (15, 1347472), (16, 1263255), (20, 1010604), (21, 962480), (24, 842170), (28, 721860), (30, 673736), (35, 577488), (40, 505302), (42, 481240), (48, 421085), (53, 381360), (56, 360930), (60, 336868), (70, 288744), (80, 252651), (84, 240620), (105, 192496), (106, 190680), (112, 180465), (120, 168434), (140, 144372), (159, 127120), (168, 120310), (210, 96248), (212, 95340), (227, 89040), (240, 84217), (265, 76272), (280, 72186), (318, 63560), (336, 60155), (371, 54480), (420, 48124), (424, 47670), (454, 44520), (530, 38136), (560, 36093), (636, 31780), (681, 29680), (742, 27240), (795, 25424), (840, 24062), (848, 23835), (908, 22260), (1060, 19068), (1113, 18160), (1135, 17808), (1272, 15890), (1362, 14840), (1484, 13620), (1589, 12720), (1590, 12712), (1680, 12031), (1816, 11130), (1855, 10896), (2120, 9534), (2226, 9080), (2270, 8904), (2544, 7945), (2724, 7420), (2968, 6810), (3178, 6360), (3180, 6356), (3405, 5936), (3632, 5565), (3710, 5448), (4240, 4767), (4452, 4540)]