20569360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1597}}^1$

素因数の和:1640

約数の個数: 80

約数和(自身を含む): 57067776

約数和(自身を除く): 36498416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1597, 1610, 1840, 2576, 3194, 3220, 6388, 6440, 7985, 11179, 12776, 12880, 15970, 22358, 25552, 31940, 36731, 44716, 55895, 63880, 73462, 89432, 111790, 127760, 146924, 178864, 183655, 223580, 257117, 293848, 367310, 447160, 514234, 587696, 734620, 894320, 1028468, 1285585, 1469240, 2056936, 2571170, 2938480, 4113872, 5142340, 10284680, 20569360]

約数ペア:

[(1, 20569360), (2, 10284680), (4, 5142340), (5, 4113872), (7, 2938480), (8, 2571170), (10, 2056936), (14, 1469240), (16, 1285585), (20, 1028468), (23, 894320), (28, 734620), (35, 587696), (40, 514234), (46, 447160), (56, 367310), (70, 293848), (80, 257117), (92, 223580), (112, 183655), (115, 178864), (140, 146924), (161, 127760), (184, 111790), (230, 89432), (280, 73462), (322, 63880), (368, 55895), (460, 44716), (560, 36731), (644, 31940), (805, 25552), (920, 22358), (1288, 15970), (1597, 12880), (1610, 12776), (1840, 11179), (2576, 7985), (3194, 6440), (3220, 6388)]