20313384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 43553496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 71, 78, 84, 91, 104, 131, 142, 156, 168, 182, 213, 262, 273, 284, 312, 364, 393, 426, 497, 524, 546, 568, 728, 786, 852, 917, 923, 994, 1048, 1092, 1491, 1572, 1703, 1704, 1834, 1846, 1988, 2184, 2751, 2769, 2982, 3144, 3406, 3668, 3692, 3976, 5109, 5502, 5538, 5964, 6461, 6812, 7336, 7384, 9301, 10218, 11004, 11076, 11921, 11928, 12922, 13624, 18602, 19383, 20436, 22008, 22152, 23842, 25844, 27903, 35763, 37204, 38766, 40872, 47684, 51688, 55806, 65107, 71526, 74408, 77532, 95368, 111612, 120913, 130214, 143052, 155064, 195321, 223224, 241826, 260428, 286104, 362739, 390642, 483652, 520856, 725478, 781284, 846391, 967304, 1450956, 1562568, 1692782, 2539173, 2901912, 3385564, 5078346, 6771128, 10156692, 20313384]

約数ペア:

[(1, 20313384), (2, 10156692), (3, 6771128), (4, 5078346), (6, 3385564), (7, 2901912), (8, 2539173), (12, 1692782), (13, 1562568), (14, 1450956), (21, 967304), (24, 846391), (26, 781284), (28, 725478), (39, 520856), (42, 483652), (52, 390642), (56, 362739), (71, 286104), (78, 260428), (84, 241826), (91, 223224), (104, 195321), (131, 155064), (142, 143052), (156, 130214), (168, 120913), (182, 111612), (213, 95368), (262, 77532), (273, 74408), (284, 71526), (312, 65107), (364, 55806), (393, 51688), (426, 47684), (497, 40872), (524, 38766), (546, 37204), (568, 35763), (728, 27903), (786, 25844), (852, 23842), (917, 22152), (923, 22008), (994, 20436), (1048, 19383), (1092, 18602), (1491, 13624), (1572, 12922), (1703, 11928), (1704, 11921), (1834, 11076), (1846, 11004), (1988, 10218), (2184, 9301), (2751, 7384), (2769, 7336), (2982, 6812), (3144, 6461), (3406, 5964), (3668, 5538), (3692, 5502), (3976, 5109)]