1720721340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7907}}^1$

素因数の和:7969

約数の個数: 192

約数和(自身を含む): 5951877120

約数和(自身を除く): 4231155780

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, 7907, 8060, 8370, 10881, 12090, 14508, 15814, 16740, 18135, 21762, 23721, 24180, 31628, 36270, 39535, 43524, 47442, 54405, 71163, 72540, 79070, 94884, 102791, 108810, 118605, 142326, 158140, 205582, 213489, 217620, 237210, 245117, 284652, 308373, 355815, 411164, 426978, 474420, 490234, 513955, 616746, 711630, 735351, 853956, 925119, 980468, 1027910, 1067445, 1225585, 1233492, 1423260, 1470702, 1541865, 1850238, 2055820, 2134890, 2206053, 2451170, 2775357, 2941404, 3083730, 3186521, 3676755, 3700476, 4269780, 4412106, 4625595, 4902340, 5550714, 6167460, 6373042, 6618159, 7353510, 8824212, 9251190, 9559563, 11030265, 11101428, 12746084, 13236318, 13876785, 14707020, 15932605, 18502380, 19119126, 22060530, 26472636, 27753570, 28678689, 31865210, 33090795, 38238252, 44121060, 47797815, 55507140, 57357378, 63730420, 66181590, 86036067, 95595630, 114714756, 132363180, 143393445, 172072134, 191191260, 286786890, 344144268, 430180335, 573573780, 860360670, 1720721340]

約数ペア:

[(1, 1720721340), (2, 860360670), (3, 573573780), (4, 430180335), (5, 344144268), (6, 286786890), (9, 191191260), (10, 172072134), (12, 143393445), (13, 132363180), (15, 114714756), (18, 95595630), (20, 86036067), (26, 66181590), (27, 63730420), (30, 57357378), (31, 55507140), (36, 47797815), (39, 44121060), (45, 38238252), (52, 33090795), (54, 31865210), (60, 28678689), (62, 27753570), (65, 26472636), (78, 22060530), (90, 19119126), (93, 18502380), (108, 15932605), (117, 14707020), (124, 13876785), (130, 13236318), (135, 12746084), (155, 11101428), (156, 11030265), (180, 9559563), (186, 9251190), (195, 8824212), (234, 7353510), (260, 6618159), (270, 6373042), (279, 6167460), (310, 5550714), (351, 4902340), (372, 4625595), (390, 4412106), (403, 4269780), (465, 3700476), (468, 3676755), (540, 3186521), (558, 3083730), (585, 2941404), (620, 2775357), (702, 2451170), (780, 2206053), (806, 2134890), (837, 2055820), (930, 1850238), (1116, 1541865), (1170, 1470702), (1209, 1423260), (1395, 1233492), (1404, 1225585), (1612, 1067445), (1674, 1027910), (1755, 980468), (1860, 925119), (2015, 853956), (2340, 735351), (2418, 711630), (2790, 616746), (3348, 513955), (3510, 490234), (3627, 474420), (4030, 426978), (4185, 411164), (4836, 355815), (5580, 308373), (6045, 284652), (7020, 245117), (7254, 237210), (7907, 217620), (8060, 213489), (8370, 205582), (10881, 158140), (12090, 142326), (14508, 118605), (15814, 108810), (16740, 102791), (18135, 94884), (21762, 79070), (23721, 72540), (24180, 71163), (31628, 54405), (36270, 47442), (39535, 43524)]