1231220900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7121}}^1$

素因数の和:7174

約数の個数: 144

約数和(自身を含む): 3461861760

約数和(自身を除く): 2230640860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 130, 133, 140, 175, 182, 190, 247, 260, 266, 325, 350, 364, 380, 455, 475, 494, 532, 650, 665, 700, 910, 950, 988, 1235, 1300, 1330, 1729, 1820, 1900, 2275, 2470, 2660, 3325, 3458, 4550, 4940, 6175, 6650, 6916, 7121, 8645, 9100, 12350, 13300, 14242, 17290, 24700, 28484, 34580, 35605, 43225, 49847, 71210, 86450, 92573, 99694, 135299, 142420, 172900, 178025, 185146, 199388, 249235, 270598, 356050, 370292, 462865, 498470, 541196, 648011, 676495, 712100, 925730, 947093, 996940, 1246175, 1296022, 1352990, 1758887, 1851460, 1894186, 2314325, 2492350, 2592044, 2705980, 3240055, 3382475, 3517774, 3788372, 4628650, 4735465, 4984700, 6480110, 6764950, 7035548, 8794435, 9257300, 9470930, 12312209, 12960220, 13529900, 16200275, 17588870, 18941860, 23677325, 24624418, 32400550, 35177740, 43972175, 47354650, 49248836, 61561045, 64801100, 87944350, 94709300, 123122090, 175888700, 246244180, 307805225, 615610450, 1231220900]

約数ペア:

[(1, 1231220900), (2, 615610450), (4, 307805225), (5, 246244180), (7, 175888700), (10, 123122090), (13, 94709300), (14, 87944350), (19, 64801100), (20, 61561045), (25, 49248836), (26, 47354650), (28, 43972175), (35, 35177740), (38, 32400550), (50, 24624418), (52, 23677325), (65, 18941860), (70, 17588870), (76, 16200275), (91, 13529900), (95, 12960220), (100, 12312209), (130, 9470930), (133, 9257300), (140, 8794435), (175, 7035548), (182, 6764950), (190, 6480110), (247, 4984700), (260, 4735465), (266, 4628650), (325, 3788372), (350, 3517774), (364, 3382475), (380, 3240055), (455, 2705980), (475, 2592044), (494, 2492350), (532, 2314325), (650, 1894186), (665, 1851460), (700, 1758887), (910, 1352990), (950, 1296022), (988, 1246175), (1235, 996940), (1300, 947093), (1330, 925730), (1729, 712100), (1820, 676495), (1900, 648011), (2275, 541196), (2470, 498470), (2660, 462865), (3325, 370292), (3458, 356050), (4550, 270598), (4940, 249235), (6175, 199388), (6650, 185146), (6916, 178025), (7121, 172900), (8645, 142420), (9100, 135299), (12350, 99694), (13300, 92573), (14242, 86450), (17290, 71210), (24700, 49847), (28484, 43225), (34580, 35605)]