251895420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 240

約数和(自身を含む): 916386240

約数和(自身を除く): 664490820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 97, 105, 108, 126, 135, 140, 162, 180, 189, 194, 210, 229, 252, 270, 291, 315, 324, 378, 388, 405, 420, 458, 485, 540, 567, 582, 630, 679, 687, 756, 810, 873, 916, 945, 970, 1134, 1145, 1164, 1260, 1358, 1374, 1455, 1603, 1620, 1746, 1890, 1940, 2037, 2061, 2268, 2290, 2619, 2716, 2748, 2835, 2910, 3206, 3395, 3435, 3492, 3780, 4074, 4122, 4365, 4580, 4809, 5238, 5670, 5820, 6111, 6183, 6412, 6790, 6870, 7857, 8015, 8148, 8244, 8730, 9618, 10185, 10305, 10476, 11340, 12222, 12366, 13095, 13580, 13740, 14427, 15714, 16030, 17460, 18333, 18549, 19236, 20370, 20610, 22213, 24045, 24444, 24732, 26190, 28854, 30555, 30915, 31428, 32060, 36666, 37098, 39285, 40740, 41220, 43281, 44426, 48090, 52380, 54999, 57708, 61110, 61830, 66639, 72135, 73332, 74196, 78570, 86562, 88852, 91665, 92745, 96180, 109998, 111065, 122220, 123660, 129843, 133278, 144270, 155491, 157140, 173124, 183330, 185490, 199917, 216405, 219996, 222130, 259686, 266556, 274995, 288540, 310982, 333195, 366660, 370980, 399834, 432810, 444260, 466473, 519372, 549990, 599751, 621964, 649215, 666390, 777455, 799668, 865620, 932946, 999585, 1099980, 1199502, 1298430, 1332780, 1399419, 1554910, 1799253, 1865892, 1999170, 2332365, 2399004, 2596860, 2798838, 2998755, 3109820, 3598506, 3998340, 4198257, 4664730, 5597676, 5997510, 6997095, 7197012, 8396514, 8996265, 9329460, 11995020, 12594771, 13994190, 16793028, 17992530, 20991285, 25189542, 27988380, 35985060, 41982570, 50379084, 62973855, 83965140, 125947710, 251895420]

約数ペア:

[(1, 251895420), (2, 125947710), (3, 83965140), (4, 62973855), (5, 50379084), (6, 41982570), (7, 35985060), (9, 27988380), (10, 25189542), (12, 20991285), (14, 17992530), (15, 16793028), (18, 13994190), (20, 12594771), (21, 11995020), (27, 9329460), (28, 8996265), (30, 8396514), (35, 7197012), (36, 6997095), (42, 5997510), (45, 5597676), (54, 4664730), (60, 4198257), (63, 3998340), (70, 3598506), (81, 3109820), (84, 2998755), (90, 2798838), (97, 2596860), (105, 2399004), (108, 2332365), (126, 1999170), (135, 1865892), (140, 1799253), (162, 1554910), (180, 1399419), (189, 1332780), (194, 1298430), (210, 1199502), (229, 1099980), (252, 999585), (270, 932946), (291, 865620), (315, 799668), (324, 777455), (378, 666390), (388, 649215), (405, 621964), (420, 599751), (458, 549990), (485, 519372), (540, 466473), (567, 444260), (582, 432810), (630, 399834), (679, 370980), (687, 366660), (756, 333195), (810, 310982), (873, 288540), (916, 274995), (945, 266556), (970, 259686), (1134, 222130), (1145, 219996), (1164, 216405), (1260, 199917), (1358, 185490), (1374, 183330), (1455, 173124), (1603, 157140), (1620, 155491), (1746, 144270), (1890, 133278), (1940, 129843), (2037, 123660), (2061, 122220), (2268, 111065), (2290, 109998), (2619, 96180), (2716, 92745), (2748, 91665), (2835, 88852), (2910, 86562), (3206, 78570), (3395, 74196), (3435, 73332), (3492, 72135), (3780, 66639), (4074, 61830), (4122, 61110), (4365, 57708), (4580, 54999), (4809, 52380), (5238, 48090), (5670, 44426), (5820, 43281), (6111, 41220), (6183, 40740), (6412, 39285), (6790, 37098), (6870, 36666), (7857, 32060), (8015, 31428), (8148, 30915), (8244, 30555), (8730, 28854), (9618, 26190), (10185, 24732), (10305, 24444), (10476, 24045), (11340, 22213), (12222, 20610), (12366, 20370), (13095, 19236), (13580, 18549), (13740, 18333), (14427, 17460), (15714, 16030)]