20259320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 51023520

約数和(自身を除く): 30764200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 61, 76, 92, 95, 115, 122, 152, 184, 190, 230, 244, 305, 361, 380, 437, 460, 488, 610, 722, 760, 874, 920, 1159, 1220, 1403, 1444, 1748, 1805, 2185, 2318, 2440, 2806, 2888, 3496, 3610, 4370, 4636, 5612, 5795, 7015, 7220, 8303, 8740, 9272, 11224, 11590, 14030, 14440, 16606, 17480, 22021, 23180, 26657, 28060, 33212, 41515, 44042, 46360, 53314, 56120, 66424, 83030, 88084, 106628, 110105, 133285, 166060, 176168, 213256, 220210, 266570, 332120, 440420, 506483, 533140, 880840, 1012966, 1066280, 2025932, 2532415, 4051864, 5064830, 10129660, 20259320]

約数ペア:

[(1, 20259320), (2, 10129660), (4, 5064830), (5, 4051864), (8, 2532415), (10, 2025932), (19, 1066280), (20, 1012966), (23, 880840), (38, 533140), (40, 506483), (46, 440420), (61, 332120), (76, 266570), (92, 220210), (95, 213256), (115, 176168), (122, 166060), (152, 133285), (184, 110105), (190, 106628), (230, 88084), (244, 83030), (305, 66424), (361, 56120), (380, 53314), (437, 46360), (460, 44042), (488, 41515), (610, 33212), (722, 28060), (760, 26657), (874, 23180), (920, 22021), (1159, 17480), (1220, 16606), (1403, 14440), (1444, 14030), (1748, 11590), (1805, 11224), (2185, 9272), (2318, 8740), (2440, 8303), (2806, 7220), (2888, 7015), (3496, 5795), (3610, 5612), (4370, 4636)]