318704800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:303

約数の個数: 144

約数和(自身を含む): 818947584

約数和(自身を除く): 500242784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 71, 80, 100, 124, 142, 155, 160, 181, 200, 248, 284, 310, 355, 362, 400, 496, 568, 620, 710, 724, 775, 800, 905, 992, 1136, 1240, 1420, 1448, 1550, 1775, 1810, 2201, 2272, 2480, 2840, 2896, 3100, 3550, 3620, 4402, 4525, 4960, 5611, 5680, 5792, 6200, 7100, 7240, 8804, 9050, 11005, 11222, 11360, 12400, 12851, 14200, 14480, 17608, 18100, 22010, 22444, 24800, 25702, 28055, 28400, 28960, 35216, 36200, 44020, 44888, 51404, 55025, 56110, 56800, 64255, 70432, 72400, 88040, 89776, 102808, 110050, 112220, 128510, 140275, 144800, 176080, 179552, 205616, 220100, 224440, 257020, 280550, 321275, 352160, 398381, 411232, 440200, 448880, 514040, 561100, 642550, 796762, 880400, 897760, 1028080, 1122200, 1285100, 1593524, 1760800, 1991905, 2056160, 2244400, 2570200, 3187048, 3983810, 4488800, 5140400, 6374096, 7967620, 9959525, 10280800, 12748192, 15935240, 19919050, 31870480, 39838100, 63740960, 79676200, 159352400, 318704800]

約数ペア:

[(1, 318704800), (2, 159352400), (4, 79676200), (5, 63740960), (8, 39838100), (10, 31870480), (16, 19919050), (20, 15935240), (25, 12748192), (31, 10280800), (32, 9959525), (40, 7967620), (50, 6374096), (62, 5140400), (71, 4488800), (80, 3983810), (100, 3187048), (124, 2570200), (142, 2244400), (155, 2056160), (160, 1991905), (181, 1760800), (200, 1593524), (248, 1285100), (284, 1122200), (310, 1028080), (355, 897760), (362, 880400), (400, 796762), (496, 642550), (568, 561100), (620, 514040), (710, 448880), (724, 440200), (775, 411232), (800, 398381), (905, 352160), (992, 321275), (1136, 280550), (1240, 257020), (1420, 224440), (1448, 220100), (1550, 205616), (1775, 179552), (1810, 176080), (2201, 144800), (2272, 140275), (2480, 128510), (2840, 112220), (2896, 110050), (3100, 102808), (3550, 89776), (3620, 88040), (4402, 72400), (4525, 70432), (4960, 64255), (5611, 56800), (5680, 56110), (5792, 55025), (6200, 51404), (7100, 44888), (7240, 44020), (8804, 36200), (9050, 35216), (11005, 28960), (11222, 28400), (11360, 28055), (12400, 25702), (12851, 24800), (14200, 22444), (14480, 22010), (17608, 18100)]