91561000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 232128000

約数和(自身を除く): 140567000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 61, 76, 79, 95, 100, 122, 125, 152, 158, 190, 200, 244, 250, 305, 316, 380, 395, 475, 488, 500, 610, 632, 760, 790, 950, 1000, 1159, 1220, 1501, 1525, 1580, 1900, 1975, 2318, 2375, 2440, 3002, 3050, 3160, 3800, 3950, 4636, 4750, 4819, 5795, 6004, 6100, 7505, 7625, 7900, 9272, 9500, 9638, 9875, 11590, 12008, 12200, 15010, 15250, 15800, 19000, 19276, 19750, 23180, 24095, 28975, 30020, 30500, 37525, 38552, 39500, 46360, 48190, 57950, 60040, 61000, 75050, 79000, 91561, 96380, 115900, 120475, 144875, 150100, 183122, 187625, 192760, 231800, 240950, 289750, 300200, 366244, 375250, 457805, 481900, 579500, 602375, 732488, 750500, 915610, 963800, 1159000, 1204750, 1501000, 1831220, 2289025, 2409500, 3662440, 4578050, 4819000, 9156100, 11445125, 18312200, 22890250, 45780500, 91561000]

約数ペア:

[(1, 91561000), (2, 45780500), (4, 22890250), (5, 18312200), (8, 11445125), (10, 9156100), (19, 4819000), (20, 4578050), (25, 3662440), (38, 2409500), (40, 2289025), (50, 1831220), (61, 1501000), (76, 1204750), (79, 1159000), (95, 963800), (100, 915610), (122, 750500), (125, 732488), (152, 602375), (158, 579500), (190, 481900), (200, 457805), (244, 375250), (250, 366244), (305, 300200), (316, 289750), (380, 240950), (395, 231800), (475, 192760), (488, 187625), (500, 183122), (610, 150100), (632, 144875), (760, 120475), (790, 115900), (950, 96380), (1000, 91561), (1159, 79000), (1220, 75050), (1501, 61000), (1525, 60040), (1580, 57950), (1900, 48190), (1975, 46360), (2318, 39500), (2375, 38552), (2440, 37525), (3002, 30500), (3050, 30020), (3160, 28975), (3800, 24095), (3950, 23180), (4636, 19750), (4750, 19276), (4819, 19000), (5795, 15800), (6004, 15250), (6100, 15010), (7505, 12200), (7625, 12008), (7900, 11590), (9272, 9875), (9500, 9638)]