20138851640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{12517}}^1$

素因数の和:12649

約数の個数: 128

約数和(自身を含む): 50021928000

約数和(自身を除く): 29883076360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 73, 76, 95, 116, 145, 146, 152, 190, 232, 290, 292, 365, 380, 551, 580, 584, 730, 760, 1102, 1160, 1387, 1460, 2117, 2204, 2755, 2774, 2920, 4234, 4408, 5510, 5548, 6935, 8468, 10585, 11020, 11096, 12517, 13870, 16936, 21170, 22040, 25034, 27740, 40223, 42340, 50068, 55480, 62585, 80446, 84680, 100136, 125170, 160892, 201115, 237823, 250340, 321784, 362993, 402230, 475646, 500680, 725986, 804460, 913741, 951292, 1189115, 1451972, 1608920, 1814965, 1827482, 1902584, 2378230, 2903944, 3629930, 3654964, 4568705, 4756460, 6896867, 7259860, 7309928, 9137410, 9512920, 13793734, 14519720, 17361079, 18274820, 26498489, 27587468, 34484335, 34722158, 36549640, 52996978, 55174936, 68968670, 69444316, 86805395, 105993956, 132492445, 137937340, 138888632, 173610790, 211987912, 264984890, 275874680, 347221580, 503471291, 529969780, 694443160, 1006942582, 1059939560, 2013885164, 2517356455, 4027770328, 5034712910, 10069425820, 20138851640]

約数ペア:

[(1, 20138851640), (2, 10069425820), (4, 5034712910), (5, 4027770328), (8, 2517356455), (10, 2013885164), (19, 1059939560), (20, 1006942582), (29, 694443160), (38, 529969780), (40, 503471291), (58, 347221580), (73, 275874680), (76, 264984890), (95, 211987912), (116, 173610790), (145, 138888632), (146, 137937340), (152, 132492445), (190, 105993956), (232, 86805395), (290, 69444316), (292, 68968670), (365, 55174936), (380, 52996978), (551, 36549640), (580, 34722158), (584, 34484335), (730, 27587468), (760, 26498489), (1102, 18274820), (1160, 17361079), (1387, 14519720), (1460, 13793734), (2117, 9512920), (2204, 9137410), (2755, 7309928), (2774, 7259860), (2920, 6896867), (4234, 4756460), (4408, 4568705), (5510, 3654964), (5548, 3629930), (6935, 2903944), (8468, 2378230), (10585, 1902584), (11020, 1827482), (11096, 1814965), (12517, 1608920), (13870, 1451972), (16936, 1189115), (21170, 951292), (22040, 913741), (25034, 804460), (27740, 725986), (40223, 500680), (42340, 475646), (50068, 402230), (55480, 362993), (62585, 321784), (80446, 250340), (84680, 237823), (100136, 201115), (125170, 160892)]