28420860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:547

約数の個数: 96

約数和(自身を含む): 86929920

約数和(自身を除く): 58509060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 83, 130, 156, 166, 195, 249, 260, 332, 390, 415, 439, 498, 780, 830, 878, 996, 1079, 1245, 1317, 1660, 1756, 2158, 2195, 2490, 2634, 3237, 4316, 4390, 4980, 5268, 5395, 5707, 6474, 6585, 8780, 10790, 11414, 12948, 13170, 16185, 17121, 21580, 22828, 26340, 28535, 32370, 34242, 36437, 57070, 64740, 68484, 72874, 85605, 109311, 114140, 145748, 171210, 182185, 218622, 342420, 364370, 437244, 473681, 546555, 728740, 947362, 1093110, 1421043, 1894724, 2186220, 2368405, 2842086, 4736810, 5684172, 7105215, 9473620, 14210430, 28420860]

約数ペア:

[(1, 28420860), (2, 14210430), (3, 9473620), (4, 7105215), (5, 5684172), (6, 4736810), (10, 2842086), (12, 2368405), (13, 2186220), (15, 1894724), (20, 1421043), (26, 1093110), (30, 947362), (39, 728740), (52, 546555), (60, 473681), (65, 437244), (78, 364370), (83, 342420), (130, 218622), (156, 182185), (166, 171210), (195, 145748), (249, 114140), (260, 109311), (332, 85605), (390, 72874), (415, 68484), (439, 64740), (498, 57070), (780, 36437), (830, 34242), (878, 32370), (996, 28535), (1079, 26340), (1245, 22828), (1317, 21580), (1660, 17121), (1756, 16185), (2158, 13170), (2195, 12948), (2490, 11414), (2634, 10790), (3237, 8780), (4316, 6585), (4390, 6474), (4980, 5707), (5268, 5395)]