18006660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:514

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 46569852

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, 461, 465, 558, 620, 630, 651, 868, 922, 930, 1085, 1116, 1260, 1302, 1383, 1395, 1844, 1860, 1953, 2170, 2305, 2604, 2766, 2790, 3227, 3255, 3906, 4149, 4340, 4610, 5532, 5580, 6454, 6510, 6915, 7812, 8298, 9220, 9681, 9765, 12908, 13020, 13830, 14291, 16135, 16596, 19362, 19530, 20745, 27660, 28582, 29043, 32270, 38724, 39060, 41490, 42873, 48405, 57164, 58086, 64540, 71455, 82980, 85746, 96810, 100037, 116172, 128619, 142910, 145215, 171492, 193620, 200074, 214365, 257238, 285820, 290430, 300111, 400148, 428730, 500185, 514476, 580860, 600222, 643095, 857460, 900333, 1000370, 1200444, 1286190, 1500555, 1800666, 2000740, 2572380, 3001110, 3601332, 4501665, 6002220, 9003330, 18006660]

約数ペア:

[(1, 18006660), (2, 9003330), (3, 6002220), (4, 4501665), (5, 3601332), (6, 3001110), (7, 2572380), (9, 2000740), (10, 1800666), (12, 1500555), (14, 1286190), (15, 1200444), (18, 1000370), (20, 900333), (21, 857460), (28, 643095), (30, 600222), (31, 580860), (35, 514476), (36, 500185), (42, 428730), (45, 400148), (60, 300111), (62, 290430), (63, 285820), (70, 257238), (84, 214365), (90, 200074), (93, 193620), (105, 171492), (124, 145215), (126, 142910), (140, 128619), (155, 116172), (180, 100037), (186, 96810), (210, 85746), (217, 82980), (252, 71455), (279, 64540), (310, 58086), (315, 57164), (372, 48405), (420, 42873), (434, 41490), (461, 39060), (465, 38724), (558, 32270), (620, 29043), (630, 28582), (651, 27660), (868, 20745), (922, 19530), (930, 19362), (1085, 16596), (1116, 16135), (1260, 14291), (1302, 13830), (1383, 13020), (1395, 12908), (1844, 9765), (1860, 9681), (1953, 9220), (2170, 8298), (2305, 7812), (2604, 6915), (2766, 6510), (2790, 6454), (3227, 5580), (3255, 5532), (3906, 4610), (4149, 4340)]