648613728

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{321733}}^1$

素因数の和:321756

約数の個数: 72

約数和(自身を含む): 2108001168

約数和(自身を除く): 1459387440

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 321733, 643466, 965199, 1286932, 1930398, 2252131, 2573864, 2895597, 3860796, 4504262, 5147728, 5791194, 6756393, 7721592, 9008524, 10295456, 11582388, 13512786, 15443184, 18017048, 20269179, 23164776, 27025572, 30886368, 36034096, 40538358, 46329552, 54051144, 72068192, 81076716, 92659104, 108102288, 162153432, 216204576, 324306864, 648613728]

約数ペア:

[(1, 648613728), (2, 324306864), (3, 216204576), (4, 162153432), (6, 108102288), (7, 92659104), (8, 81076716), (9, 72068192), (12, 54051144), (14, 46329552), (16, 40538358), (18, 36034096), (21, 30886368), (24, 27025572), (28, 23164776), (32, 20269179), (36, 18017048), (42, 15443184), (48, 13512786), (56, 11582388), (63, 10295456), (72, 9008524), (84, 7721592), (96, 6756393), (112, 5791194), (126, 5147728), (144, 4504262), (168, 3860796), (224, 2895597), (252, 2573864), (288, 2252131), (336, 1930398), (504, 1286932), (672, 965199), (1008, 643466), (2016, 321733)]