20526100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 108

約数和(自身を含む): 53434080

約数和(自身を除く): 32907980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 59, 70, 71, 98, 100, 118, 140, 142, 175, 196, 236, 245, 284, 295, 350, 355, 413, 490, 497, 590, 700, 710, 826, 980, 994, 1180, 1225, 1420, 1475, 1652, 1775, 1988, 2065, 2450, 2485, 2891, 2950, 3479, 3550, 4130, 4189, 4900, 4970, 5782, 5900, 6958, 7100, 8260, 8378, 9940, 10325, 11564, 12425, 13916, 14455, 16756, 17395, 20650, 20945, 24850, 28910, 29323, 34790, 41300, 41890, 49700, 57820, 58646, 69580, 72275, 83780, 86975, 104725, 117292, 144550, 146615, 173950, 205261, 209450, 289100, 293230, 347900, 410522, 418900, 586460, 733075, 821044, 1026305, 1466150, 2052610, 2932300, 4105220, 5131525, 10263050, 20526100]

約数ペア:

[(1, 20526100), (2, 10263050), (4, 5131525), (5, 4105220), (7, 2932300), (10, 2052610), (14, 1466150), (20, 1026305), (25, 821044), (28, 733075), (35, 586460), (49, 418900), (50, 410522), (59, 347900), (70, 293230), (71, 289100), (98, 209450), (100, 205261), (118, 173950), (140, 146615), (142, 144550), (175, 117292), (196, 104725), (236, 86975), (245, 83780), (284, 72275), (295, 69580), (350, 58646), (355, 57820), (413, 49700), (490, 41890), (497, 41300), (590, 34790), (700, 29323), (710, 28910), (826, 24850), (980, 20945), (994, 20650), (1180, 17395), (1225, 16756), (1420, 14455), (1475, 13916), (1652, 12425), (1775, 11564), (1988, 10325), (2065, 9940), (2450, 8378), (2485, 8260), (2891, 7100), (2950, 6958), (3479, 5900), (3550, 5782), (4130, 4970), (4189, 4900)]