81951480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{449}}^1$

素因数の和:495

約数の個数: 192

約数和(自身を含む): 296460000

約数和(自身を除く): 214508520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 169, 180, 195, 216, 234, 260, 270, 312, 338, 351, 360, 390, 449, 468, 507, 520, 540, 585, 676, 702, 780, 845, 898, 936, 1014, 1080, 1170, 1347, 1352, 1404, 1521, 1560, 1690, 1755, 1796, 2028, 2245, 2340, 2535, 2694, 2808, 3042, 3380, 3510, 3592, 4041, 4056, 4490, 4563, 4680, 5070, 5388, 5837, 6084, 6735, 6760, 7020, 7605, 8082, 8980, 9126, 10140, 10776, 11674, 12123, 12168, 13470, 14040, 15210, 16164, 17511, 17960, 18252, 20205, 20280, 22815, 23348, 24246, 26940, 29185, 30420, 32328, 35022, 36504, 40410, 45630, 46696, 48492, 52533, 53880, 58370, 60615, 60840, 70044, 75881, 80820, 87555, 91260, 96984, 105066, 116740, 121230, 140088, 151762, 157599, 161640, 175110, 182520, 210132, 227643, 233480, 242460, 262665, 303524, 315198, 350220, 379405, 420264, 455286, 484920, 525330, 607048, 630396, 682929, 700440, 758810, 787995, 910572, 1050660, 1138215, 1260792, 1365858, 1517620, 1575990, 1821144, 2048787, 2101320, 2276430, 2731716, 3035240, 3151980, 3414645, 4097574, 4552860, 5463432, 6303960, 6829290, 8195148, 9105720, 10243935, 13658580, 16390296, 20487870, 27317160, 40975740, 81951480]

約数ペア:

[(1, 81951480), (2, 40975740), (3, 27317160), (4, 20487870), (5, 16390296), (6, 13658580), (8, 10243935), (9, 9105720), (10, 8195148), (12, 6829290), (13, 6303960), (15, 5463432), (18, 4552860), (20, 4097574), (24, 3414645), (26, 3151980), (27, 3035240), (30, 2731716), (36, 2276430), (39, 2101320), (40, 2048787), (45, 1821144), (52, 1575990), (54, 1517620), (60, 1365858), (65, 1260792), (72, 1138215), (78, 1050660), (90, 910572), (104, 787995), (108, 758810), (117, 700440), (120, 682929), (130, 630396), (135, 607048), (156, 525330), (169, 484920), (180, 455286), (195, 420264), (216, 379405), (234, 350220), (260, 315198), (270, 303524), (312, 262665), (338, 242460), (351, 233480), (360, 227643), (390, 210132), (449, 182520), (468, 175110), (507, 161640), (520, 157599), (540, 151762), (585, 140088), (676, 121230), (702, 116740), (780, 105066), (845, 96984), (898, 91260), (936, 87555), (1014, 80820), (1080, 75881), (1170, 70044), (1347, 60840), (1352, 60615), (1404, 58370), (1521, 53880), (1560, 52533), (1690, 48492), (1755, 46696), (1796, 45630), (2028, 40410), (2245, 36504), (2340, 35022), (2535, 32328), (2694, 30420), (2808, 29185), (3042, 26940), (3380, 24246), (3510, 23348), (3592, 22815), (4041, 20280), (4056, 20205), (4490, 18252), (4563, 17960), (4680, 17511), (5070, 16164), (5388, 15210), (5837, 14040), (6084, 13470), (6735, 12168), (6760, 12123), (7020, 11674), (7605, 10776), (8082, 10140), (8980, 9126)]