19628640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 144

約数和(自身を含む): 68756688

約数和(自身を除く): 49128048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 317, 344, 360, 387, 430, 480, 516, 634, 645, 688, 720, 774, 860, 951, 1032, 1268, 1290, 1376, 1440, 1548, 1585, 1720, 1902, 1935, 2064, 2536, 2580, 2853, 3096, 3170, 3440, 3804, 3870, 4128, 4755, 5072, 5160, 5706, 6192, 6340, 6880, 7608, 7740, 9510, 10144, 10320, 11412, 12384, 12680, 13631, 14265, 15216, 15480, 19020, 20640, 22824, 25360, 27262, 28530, 30432, 30960, 38040, 40893, 45648, 50720, 54524, 57060, 61920, 68155, 76080, 81786, 91296, 109048, 114120, 122679, 136310, 152160, 163572, 204465, 218096, 228240, 245358, 272620, 327144, 408930, 436192, 456480, 490716, 545240, 613395, 654288, 817860, 981432, 1090480, 1226790, 1308576, 1635720, 1962864, 2180960, 2453580, 3271440, 3925728, 4907160, 6542880, 9814320, 19628640]

約数ペア:

[(1, 19628640), (2, 9814320), (3, 6542880), (4, 4907160), (5, 3925728), (6, 3271440), (8, 2453580), (9, 2180960), (10, 1962864), (12, 1635720), (15, 1308576), (16, 1226790), (18, 1090480), (20, 981432), (24, 817860), (30, 654288), (32, 613395), (36, 545240), (40, 490716), (43, 456480), (45, 436192), (48, 408930), (60, 327144), (72, 272620), (80, 245358), (86, 228240), (90, 218096), (96, 204465), (120, 163572), (129, 152160), (144, 136310), (160, 122679), (172, 114120), (180, 109048), (215, 91296), (240, 81786), (258, 76080), (288, 68155), (317, 61920), (344, 57060), (360, 54524), (387, 50720), (430, 45648), (480, 40893), (516, 38040), (634, 30960), (645, 30432), (688, 28530), (720, 27262), (774, 25360), (860, 22824), (951, 20640), (1032, 19020), (1268, 15480), (1290, 15216), (1376, 14265), (1440, 13631), (1548, 12680), (1585, 12384), (1720, 11412), (1902, 10320), (1935, 10144), (2064, 9510), (2536, 7740), (2580, 7608), (2853, 6880), (3096, 6340), (3170, 6192), (3440, 5706), (3804, 5160), (3870, 5072), (4128, 4755)]