31690680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1$

素因数の和:1269

約数の個数: 128

約数和(自身を含む): 112250880

約数和(自身を除く): 80560200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1217, 1240, 1302, 1736, 1860, 2170, 2434, 2604, 3255, 3651, 3720, 4340, 4868, 5208, 6085, 6510, 7302, 8519, 8680, 9736, 12170, 13020, 14604, 17038, 18255, 24340, 25557, 26040, 29208, 34076, 36510, 37727, 42595, 48680, 51114, 68152, 73020, 75454, 85190, 102228, 113181, 127785, 146040, 150908, 170380, 188635, 204456, 226362, 255570, 264089, 301816, 340760, 377270, 452724, 511140, 528178, 565905, 754540, 792267, 905448, 1022280, 1056356, 1131810, 1320445, 1509080, 1584534, 2112712, 2263620, 2640890, 3169068, 3961335, 4527240, 5281780, 6338136, 7922670, 10563560, 15845340, 31690680]

約数ペア:

[(1, 31690680), (2, 15845340), (3, 10563560), (4, 7922670), (5, 6338136), (6, 5281780), (7, 4527240), (8, 3961335), (10, 3169068), (12, 2640890), (14, 2263620), (15, 2112712), (20, 1584534), (21, 1509080), (24, 1320445), (28, 1131810), (30, 1056356), (31, 1022280), (35, 905448), (40, 792267), (42, 754540), (56, 565905), (60, 528178), (62, 511140), (70, 452724), (84, 377270), (93, 340760), (105, 301816), (120, 264089), (124, 255570), (140, 226362), (155, 204456), (168, 188635), (186, 170380), (210, 150908), (217, 146040), (248, 127785), (280, 113181), (310, 102228), (372, 85190), (420, 75454), (434, 73020), (465, 68152), (620, 51114), (651, 48680), (744, 42595), (840, 37727), (868, 36510), (930, 34076), (1085, 29208), (1217, 26040), (1240, 25557), (1302, 24340), (1736, 18255), (1860, 17038), (2170, 14604), (2434, 13020), (2604, 12170), (3255, 9736), (3651, 8680), (3720, 8519), (4340, 7302), (4868, 6510), (5208, 6085)]