78020400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:923

約数の個数: 120

約数和(自身を含む): 253396480

約数和(自身を除く): 175376080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 79, 80, 100, 120, 150, 158, 200, 237, 240, 300, 316, 395, 400, 474, 600, 632, 790, 823, 948, 1185, 1200, 1264, 1580, 1646, 1896, 1975, 2370, 2469, 3160, 3292, 3792, 3950, 4115, 4740, 4938, 5925, 6320, 6584, 7900, 8230, 9480, 9876, 11850, 12345, 13168, 15800, 16460, 18960, 19752, 20575, 23700, 24690, 31600, 32920, 39504, 41150, 47400, 49380, 61725, 65017, 65840, 82300, 94800, 98760, 123450, 130034, 164600, 195051, 197520, 246900, 260068, 325085, 329200, 390102, 493800, 520136, 650170, 780204, 975255, 987600, 1040272, 1300340, 1560408, 1625425, 1950510, 2600680, 3120816, 3250850, 3901020, 4876275, 5201360, 6501700, 7802040, 9752550, 13003400, 15604080, 19505100, 26006800, 39010200, 78020400]

約数ペア:

[(1, 78020400), (2, 39010200), (3, 26006800), (4, 19505100), (5, 15604080), (6, 13003400), (8, 9752550), (10, 7802040), (12, 6501700), (15, 5201360), (16, 4876275), (20, 3901020), (24, 3250850), (25, 3120816), (30, 2600680), (40, 1950510), (48, 1625425), (50, 1560408), (60, 1300340), (75, 1040272), (79, 987600), (80, 975255), (100, 780204), (120, 650170), (150, 520136), (158, 493800), (200, 390102), (237, 329200), (240, 325085), (300, 260068), (316, 246900), (395, 197520), (400, 195051), (474, 164600), (600, 130034), (632, 123450), (790, 98760), (823, 94800), (948, 82300), (1185, 65840), (1200, 65017), (1264, 61725), (1580, 49380), (1646, 47400), (1896, 41150), (1975, 39504), (2370, 32920), (2469, 31600), (3160, 24690), (3292, 23700), (3792, 20575), (3950, 19752), (4115, 18960), (4740, 16460), (4938, 15800), (5925, 13168), (6320, 12345), (6584, 11850), (7900, 9876), (8230, 9480)]