1991440620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9151}}^1$

素因数の和:9213

約数の個数: 192

約数和(自身を含む): 6888161280

約数和(自身を除く): 4896720660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 31, 36, 39, 45, 52, 54, 60, 62, 65, 78, 90, 93, 108, 117, 124, 130, 135, 155, 156, 180, 186, 195, 234, 260, 270, 279, 310, 351, 372, 390, 403, 465, 468, 540, 558, 585, 620, 702, 780, 806, 837, 930, 1116, 1170, 1209, 1395, 1404, 1612, 1674, 1755, 1860, 2015, 2340, 2418, 2790, 3348, 3510, 3627, 4030, 4185, 4836, 5580, 6045, 7020, 7254, 8060, 8370, 9151, 10881, 12090, 14508, 16740, 18135, 18302, 21762, 24180, 27453, 36270, 36604, 43524, 45755, 54405, 54906, 72540, 82359, 91510, 108810, 109812, 118963, 137265, 164718, 183020, 217620, 237926, 247077, 274530, 283681, 329436, 356889, 411795, 475852, 494154, 549060, 567362, 594815, 713778, 823590, 851043, 988308, 1070667, 1134724, 1189630, 1235385, 1418405, 1427556, 1647180, 1702086, 1784445, 2141334, 2379260, 2470770, 2553129, 2836810, 3212001, 3404172, 3568890, 3687853, 4255215, 4282668, 4941540, 5106258, 5353335, 5673620, 6424002, 7137780, 7375706, 7659387, 8510430, 10212516, 10706670, 11063559, 12765645, 12848004, 14751412, 15318774, 16060005, 17020860, 18439265, 21413340, 22127118, 25531290, 30637548, 32120010, 33190677, 36878530, 38296935, 44254236, 51062580, 55317795, 64240020, 66381354, 73757060, 76593870, 99572031, 110635590, 132762708, 153187740, 165953385, 199144062, 221271180, 331906770, 398288124, 497860155, 663813540, 995720310, 1991440620]

約数ペア:

[(1, 1991440620), (2, 995720310), (3, 663813540), (4, 497860155), (5, 398288124), (6, 331906770), (9, 221271180), (10, 199144062), (12, 165953385), (13, 153187740), (15, 132762708), (18, 110635590), (20, 99572031), (26, 76593870), (27, 73757060), (30, 66381354), (31, 64240020), (36, 55317795), (39, 51062580), (45, 44254236), (52, 38296935), (54, 36878530), (60, 33190677), (62, 32120010), (65, 30637548), (78, 25531290), (90, 22127118), (93, 21413340), (108, 18439265), (117, 17020860), (124, 16060005), (130, 15318774), (135, 14751412), (155, 12848004), (156, 12765645), (180, 11063559), (186, 10706670), (195, 10212516), (234, 8510430), (260, 7659387), (270, 7375706), (279, 7137780), (310, 6424002), (351, 5673620), (372, 5353335), (390, 5106258), (403, 4941540), (465, 4282668), (468, 4255215), (540, 3687853), (558, 3568890), (585, 3404172), (620, 3212001), (702, 2836810), (780, 2553129), (806, 2470770), (837, 2379260), (930, 2141334), (1116, 1784445), (1170, 1702086), (1209, 1647180), (1395, 1427556), (1404, 1418405), (1612, 1235385), (1674, 1189630), (1755, 1134724), (1860, 1070667), (2015, 988308), (2340, 851043), (2418, 823590), (2790, 713778), (3348, 594815), (3510, 567362), (3627, 549060), (4030, 494154), (4185, 475852), (4836, 411795), (5580, 356889), (6045, 329436), (7020, 283681), (7254, 274530), (8060, 247077), (8370, 237926), (9151, 217620), (10881, 183020), (12090, 164718), (14508, 137265), (16740, 118963), (18135, 109812), (18302, 108810), (21762, 91510), (24180, 82359), (27453, 72540), (36270, 54906), (36604, 54405), (43524, 45755)]