20930840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 56019600

約数和(自身を除く): 35088760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 59, 70, 98, 118, 140, 181, 196, 236, 245, 280, 295, 362, 392, 413, 472, 490, 590, 724, 826, 905, 980, 1180, 1267, 1448, 1652, 1810, 1960, 2065, 2360, 2534, 2891, 3304, 3620, 4130, 5068, 5782, 6335, 7240, 8260, 8869, 10136, 10679, 11564, 12670, 14455, 16520, 17738, 21358, 23128, 25340, 28910, 35476, 42716, 44345, 50680, 53395, 57820, 70952, 74753, 85432, 88690, 106790, 115640, 149506, 177380, 213580, 299012, 354760, 373765, 427160, 523271, 598024, 747530, 1046542, 1495060, 2093084, 2616355, 2990120, 4186168, 5232710, 10465420, 20930840]

約数ペア:

[(1, 20930840), (2, 10465420), (4, 5232710), (5, 4186168), (7, 2990120), (8, 2616355), (10, 2093084), (14, 1495060), (20, 1046542), (28, 747530), (35, 598024), (40, 523271), (49, 427160), (56, 373765), (59, 354760), (70, 299012), (98, 213580), (118, 177380), (140, 149506), (181, 115640), (196, 106790), (236, 88690), (245, 85432), (280, 74753), (295, 70952), (362, 57820), (392, 53395), (413, 50680), (472, 44345), (490, 42716), (590, 35476), (724, 28910), (826, 25340), (905, 23128), (980, 21358), (1180, 17738), (1267, 16520), (1448, 14455), (1652, 12670), (1810, 11564), (1960, 10679), (2065, 10136), (2360, 8869), (2534, 8260), (2891, 7240), (3304, 6335), (3620, 5782), (4130, 5068)]