81311400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:448

約数の個数: 144

約数和(自身を含む): 275652000

約数和(自身を除く): 194340600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 199, 200, 225, 227, 300, 360, 398, 450, 454, 597, 600, 681, 796, 900, 908, 995, 1135, 1194, 1362, 1592, 1791, 1800, 1816, 1990, 2043, 2270, 2388, 2724, 2985, 3405, 3582, 3980, 4086, 4540, 4776, 4975, 5448, 5675, 5970, 6810, 7164, 7960, 8172, 8955, 9080, 9950, 10215, 11350, 11940, 13620, 14328, 14925, 16344, 17025, 17910, 19900, 20430, 22700, 23880, 27240, 29850, 34050, 35820, 39800, 40860, 44775, 45173, 45400, 51075, 59700, 68100, 71640, 81720, 89550, 90346, 102150, 119400, 135519, 136200, 179100, 180692, 204300, 225865, 271038, 358200, 361384, 406557, 408600, 451730, 542076, 677595, 813114, 903460, 1084152, 1129325, 1355190, 1626228, 1806920, 2032785, 2258650, 2710380, 3252456, 3387975, 4065570, 4517300, 5420760, 6775950, 8131140, 9034600, 10163925, 13551900, 16262280, 20327850, 27103800, 40655700, 81311400]

約数ペア:

[(1, 81311400), (2, 40655700), (3, 27103800), (4, 20327850), (5, 16262280), (6, 13551900), (8, 10163925), (9, 9034600), (10, 8131140), (12, 6775950), (15, 5420760), (18, 4517300), (20, 4065570), (24, 3387975), (25, 3252456), (30, 2710380), (36, 2258650), (40, 2032785), (45, 1806920), (50, 1626228), (60, 1355190), (72, 1129325), (75, 1084152), (90, 903460), (100, 813114), (120, 677595), (150, 542076), (180, 451730), (199, 408600), (200, 406557), (225, 361384), (227, 358200), (300, 271038), (360, 225865), (398, 204300), (450, 180692), (454, 179100), (597, 136200), (600, 135519), (681, 119400), (796, 102150), (900, 90346), (908, 89550), (995, 81720), (1135, 71640), (1194, 68100), (1362, 59700), (1592, 51075), (1791, 45400), (1800, 45173), (1816, 44775), (1990, 40860), (2043, 39800), (2270, 35820), (2388, 34050), (2724, 29850), (2985, 27240), (3405, 23880), (3582, 22700), (3980, 20430), (4086, 19900), (4540, 17910), (4776, 17025), (4975, 16344), (5448, 14925), (5675, 14328), (5970, 13620), (6810, 11940), (7164, 11350), (7960, 10215), (8172, 9950), (8955, 9080)]