205345320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:539

約数の個数: 128

約数和(自身を含む): 636854400

約数和(自身を除く): 431509080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 83, 106, 120, 159, 166, 212, 249, 265, 318, 332, 389, 415, 424, 498, 530, 636, 664, 778, 795, 830, 996, 1060, 1167, 1245, 1272, 1556, 1590, 1660, 1945, 1992, 2120, 2334, 2490, 3112, 3180, 3320, 3890, 4399, 4668, 4980, 5835, 6360, 7780, 8798, 9336, 9960, 11670, 13197, 15560, 17596, 20617, 21995, 23340, 26394, 32287, 35192, 41234, 43990, 46680, 52788, 61851, 64574, 65985, 82468, 87980, 96861, 103085, 105576, 123702, 129148, 131970, 161435, 164936, 175960, 193722, 206170, 247404, 258296, 263940, 309255, 322870, 387444, 412340, 484305, 494808, 527880, 618510, 645740, 774888, 824680, 968610, 1237020, 1291480, 1711211, 1937220, 2474040, 3422422, 3874440, 5133633, 6844844, 8556055, 10267266, 13689688, 17112110, 20534532, 25668165, 34224220, 41069064, 51336330, 68448440, 102672660, 205345320]

約数ペア:

[(1, 205345320), (2, 102672660), (3, 68448440), (4, 51336330), (5, 41069064), (6, 34224220), (8, 25668165), (10, 20534532), (12, 17112110), (15, 13689688), (20, 10267266), (24, 8556055), (30, 6844844), (40, 5133633), (53, 3874440), (60, 3422422), (83, 2474040), (106, 1937220), (120, 1711211), (159, 1291480), (166, 1237020), (212, 968610), (249, 824680), (265, 774888), (318, 645740), (332, 618510), (389, 527880), (415, 494808), (424, 484305), (498, 412340), (530, 387444), (636, 322870), (664, 309255), (778, 263940), (795, 258296), (830, 247404), (996, 206170), (1060, 193722), (1167, 175960), (1245, 164936), (1272, 161435), (1556, 131970), (1590, 129148), (1660, 123702), (1945, 105576), (1992, 103085), (2120, 96861), (2334, 87980), (2490, 82468), (3112, 65985), (3180, 64574), (3320, 61851), (3890, 52788), (4399, 46680), (4668, 43990), (4980, 41234), (5835, 35192), (6360, 32287), (7780, 26394), (8798, 23340), (9336, 21995), (9960, 20617), (11670, 17596), (13197, 15560)]