88991440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 219985920

約数和(自身を除く): 130994480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 127, 152, 190, 254, 304, 380, 461, 508, 635, 760, 922, 1016, 1270, 1520, 1844, 2032, 2305, 2413, 2540, 3688, 4610, 4826, 5080, 7376, 8759, 9220, 9652, 10160, 12065, 17518, 18440, 19304, 24130, 35036, 36880, 38608, 43795, 48260, 58547, 70072, 87590, 96520, 117094, 140144, 175180, 193040, 234188, 292735, 350360, 468376, 585470, 700720, 936752, 1112393, 1170940, 2224786, 2341880, 4449572, 4683760, 5561965, 8899144, 11123930, 17798288, 22247860, 44495720, 88991440]

約数ペア:

[(1, 88991440), (2, 44495720), (4, 22247860), (5, 17798288), (8, 11123930), (10, 8899144), (16, 5561965), (19, 4683760), (20, 4449572), (38, 2341880), (40, 2224786), (76, 1170940), (80, 1112393), (95, 936752), (127, 700720), (152, 585470), (190, 468376), (254, 350360), (304, 292735), (380, 234188), (461, 193040), (508, 175180), (635, 140144), (760, 117094), (922, 96520), (1016, 87590), (1270, 70072), (1520, 58547), (1844, 48260), (2032, 43795), (2305, 38608), (2413, 36880), (2540, 35036), (3688, 24130), (4610, 19304), (4826, 18440), (5080, 17518), (7376, 12065), (8759, 10160), (9220, 9652)]