72123840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:419

約数の個数: 168

約数和(自身を含む): 252008640

約数和(自身を除く): 179884800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 79, 80, 90, 96, 120, 144, 158, 160, 180, 192, 237, 240, 288, 316, 317, 320, 360, 395, 474, 480, 576, 632, 634, 711, 720, 790, 948, 951, 960, 1185, 1264, 1268, 1422, 1440, 1580, 1585, 1896, 1902, 2370, 2528, 2536, 2844, 2853, 2880, 3160, 3170, 3555, 3792, 3804, 4740, 4755, 5056, 5072, 5688, 5706, 6320, 6340, 7110, 7584, 7608, 9480, 9510, 10144, 11376, 11412, 12640, 12680, 14220, 14265, 15168, 15216, 18960, 19020, 20288, 22752, 22824, 25043, 25280, 25360, 28440, 28530, 30432, 37920, 38040, 45504, 45648, 50086, 50720, 56880, 57060, 60864, 75129, 75840, 76080, 91296, 100172, 101440, 113760, 114120, 125215, 150258, 152160, 182592, 200344, 225387, 227520, 228240, 250430, 300516, 304320, 375645, 400688, 450774, 456480, 500860, 601032, 751290, 801376, 901548, 912960, 1001720, 1126935, 1202064, 1502580, 1602752, 1803096, 2003440, 2253870, 2404128, 3005160, 3606192, 4006880, 4507740, 4808256, 6010320, 7212384, 8013760, 9015480, 12020640, 14424768, 18030960, 24041280, 36061920, 72123840]

約数ペア:

[(1, 72123840), (2, 36061920), (3, 24041280), (4, 18030960), (5, 14424768), (6, 12020640), (8, 9015480), (9, 8013760), (10, 7212384), (12, 6010320), (15, 4808256), (16, 4507740), (18, 4006880), (20, 3606192), (24, 3005160), (30, 2404128), (32, 2253870), (36, 2003440), (40, 1803096), (45, 1602752), (48, 1502580), (60, 1202064), (64, 1126935), (72, 1001720), (79, 912960), (80, 901548), (90, 801376), (96, 751290), (120, 601032), (144, 500860), (158, 456480), (160, 450774), (180, 400688), (192, 375645), (237, 304320), (240, 300516), (288, 250430), (316, 228240), (317, 227520), (320, 225387), (360, 200344), (395, 182592), (474, 152160), (480, 150258), (576, 125215), (632, 114120), (634, 113760), (711, 101440), (720, 100172), (790, 91296), (948, 76080), (951, 75840), (960, 75129), (1185, 60864), (1264, 57060), (1268, 56880), (1422, 50720), (1440, 50086), (1580, 45648), (1585, 45504), (1896, 38040), (1902, 37920), (2370, 30432), (2528, 28530), (2536, 28440), (2844, 25360), (2853, 25280), (2880, 25043), (3160, 22824), (3170, 22752), (3555, 20288), (3792, 19020), (3804, 18960), (4740, 15216), (4755, 15168), (5056, 14265), (5072, 14220), (5688, 12680), (5706, 12640), (6320, 11412), (6340, 11376), (7110, 10144), (7584, 9510), (7608, 9480)]