211431780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5413}}^1$

素因数の和:5466

約数の個数: 144

約数和(自身を含む): 756747264

約数和(自身を除く): 545315484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2170, 2604, 2790, 3255, 3906, 4340, 5413, 5580, 6510, 7812, 9765, 10826, 13020, 16239, 19530, 21652, 27065, 32478, 37891, 39060, 48717, 54130, 64956, 75782, 81195, 97434, 108260, 113673, 151564, 162390, 167803, 189455, 194868, 227346, 243585, 324780, 335606, 341019, 378910, 454692, 487170, 503409, 568365, 671212, 682038, 757820, 839015, 974340, 1006818, 1136730, 1174621, 1364076, 1510227, 1678030, 1705095, 2013636, 2273460, 2349242, 2517045, 3020454, 3356060, 3410190, 3523863, 4698484, 5034090, 5873105, 6040908, 6820380, 7047726, 7551135, 10068180, 10571589, 11746210, 14095452, 15102270, 17619315, 21143178, 23492420, 30204540, 35238630, 42286356, 52857945, 70477260, 105715890, 211431780]

約数ペア:

[(1, 211431780), (2, 105715890), (3, 70477260), (4, 52857945), (5, 42286356), (6, 35238630), (7, 30204540), (9, 23492420), (10, 21143178), (12, 17619315), (14, 15102270), (15, 14095452), (18, 11746210), (20, 10571589), (21, 10068180), (28, 7551135), (30, 7047726), (31, 6820380), (35, 6040908), (36, 5873105), (42, 5034090), (45, 4698484), (60, 3523863), (62, 3410190), (63, 3356060), (70, 3020454), (84, 2517045), (90, 2349242), (93, 2273460), (105, 2013636), (124, 1705095), (126, 1678030), (140, 1510227), (155, 1364076), (180, 1174621), (186, 1136730), (210, 1006818), (217, 974340), (252, 839015), (279, 757820), (310, 682038), (315, 671212), (372, 568365), (420, 503409), (434, 487170), (465, 454692), (558, 378910), (620, 341019), (630, 335606), (651, 324780), (868, 243585), (930, 227346), (1085, 194868), (1116, 189455), (1260, 167803), (1302, 162390), (1395, 151564), (1860, 113673), (1953, 108260), (2170, 97434), (2604, 81195), (2790, 75782), (3255, 64956), (3906, 54130), (4340, 48717), (5413, 39060), (5580, 37891), (6510, 32478), (7812, 27065), (9765, 21652), (10826, 19530), (13020, 16239)]