20147950780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1\times {\mathrm{709}}^1$

素因数の和:1283

約数の個数: 96

約数和(自身を含む): 44601177600

約数和(自身を除く): 24453226820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 163, 230, 326, 379, 460, 652, 709, 758, 815, 1418, 1516, 1630, 1895, 2836, 3260, 3545, 3749, 3790, 7090, 7498, 7580, 8717, 14180, 14996, 16307, 17434, 18745, 32614, 34868, 37490, 43585, 61777, 65228, 74980, 81535, 87170, 115567, 123554, 163070, 174340, 231134, 247108, 268711, 308885, 326140, 462268, 537422, 577835, 617770, 1074844, 1155670, 1235540, 1343555, 1420871, 2311340, 2658041, 2687110, 2841742, 5316082, 5374220, 5683484, 6180353, 7104355, 10632164, 12360706, 13290205, 14208710, 24721412, 26580410, 28417420, 30901765, 43799893, 53160820, 61803530, 87599786, 123607060, 175199572, 218999465, 437998930, 875997860, 1007397539, 2014795078, 4029590156, 5036987695, 10073975390, 20147950780]

約数ペア:

[(1, 20147950780), (2, 10073975390), (4, 5036987695), (5, 4029590156), (10, 2014795078), (20, 1007397539), (23, 875997860), (46, 437998930), (92, 218999465), (115, 175199572), (163, 123607060), (230, 87599786), (326, 61803530), (379, 53160820), (460, 43799893), (652, 30901765), (709, 28417420), (758, 26580410), (815, 24721412), (1418, 14208710), (1516, 13290205), (1630, 12360706), (1895, 10632164), (2836, 7104355), (3260, 6180353), (3545, 5683484), (3749, 5374220), (3790, 5316082), (7090, 2841742), (7498, 2687110), (7580, 2658041), (8717, 2311340), (14180, 1420871), (14996, 1343555), (16307, 1235540), (17434, 1155670), (18745, 1074844), (32614, 617770), (34868, 577835), (37490, 537422), (43585, 462268), (61777, 326140), (65228, 308885), (74980, 268711), (81535, 247108), (87170, 231134), (115567, 174340), (123554, 163070)]