256728360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9859}}^1$

素因数の和:9911

約数の個数: 128

約数和(自身を含む): 908697600

約数和(自身を除く): 651969240

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, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 9859, 13020, 19718, 26040, 29577, 39436, 49295, 59154, 69013, 78872, 98590, 118308, 138026, 147885, 197180, 207039, 236616, 276052, 295770, 305629, 345065, 394360, 414078, 552104, 591540, 611258, 690130, 828156, 916887, 1035195, 1183080, 1222516, 1380260, 1528145, 1656312, 1833774, 2070390, 2139403, 2445032, 2760520, 3056290, 3667548, 4140780, 4278806, 4584435, 6112580, 6418209, 7335096, 8281560, 8557612, 9168870, 10697015, 12225160, 12836418, 17115224, 18337740, 21394030, 25672836, 32091045, 36675480, 42788060, 51345672, 64182090, 85576120, 128364180, 256728360]

約数ペア:

[(1, 256728360), (2, 128364180), (3, 85576120), (4, 64182090), (5, 51345672), (6, 42788060), (7, 36675480), (8, 32091045), (10, 25672836), (12, 21394030), (14, 18337740), (15, 17115224), (20, 12836418), (21, 12225160), (24, 10697015), (28, 9168870), (30, 8557612), (31, 8281560), (35, 7335096), (40, 6418209), (42, 6112580), (56, 4584435), (60, 4278806), (62, 4140780), (70, 3667548), (84, 3056290), (93, 2760520), (105, 2445032), (120, 2139403), (124, 2070390), (140, 1833774), (155, 1656312), (168, 1528145), (186, 1380260), (210, 1222516), (217, 1183080), (248, 1035195), (280, 916887), (310, 828156), (372, 690130), (420, 611258), (434, 591540), (465, 552104), (620, 414078), (651, 394360), (744, 345065), (840, 305629), (868, 295770), (930, 276052), (1085, 236616), (1240, 207039), (1302, 197180), (1736, 147885), (1860, 138026), (2170, 118308), (2604, 98590), (3255, 78872), (3720, 69013), (4340, 59154), (5208, 49295), (6510, 39436), (8680, 29577), (9859, 26040), (13020, 19718)]