31899420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 119528640

約数和(自身を除く): 87629220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 81, 84, 87, 90, 97, 105, 108, 116, 126, 135, 140, 145, 162, 174, 180, 189, 194, 203, 210, 252, 261, 270, 290, 291, 315, 324, 348, 378, 388, 405, 406, 420, 435, 485, 522, 540, 567, 580, 582, 609, 630, 679, 756, 783, 810, 812, 870, 873, 945, 970, 1015, 1044, 1134, 1164, 1218, 1260, 1305, 1358, 1455, 1566, 1620, 1740, 1746, 1827, 1890, 1940, 2030, 2037, 2268, 2349, 2436, 2610, 2619, 2716, 2813, 2835, 2910, 3045, 3132, 3395, 3492, 3654, 3780, 3915, 4060, 4074, 4365, 4698, 5220, 5238, 5481, 5626, 5670, 5820, 6090, 6111, 6790, 7308, 7830, 7857, 8148, 8439, 8730, 9135, 9396, 10185, 10476, 10962, 11252, 11340, 11745, 12180, 12222, 13095, 13580, 14065, 15660, 15714, 16443, 16878, 17460, 18270, 18333, 19691, 20370, 21924, 23490, 24444, 25317, 26190, 27405, 28130, 30555, 31428, 32886, 33756, 36540, 36666, 39285, 39382, 40740, 42195, 46980, 50634, 52380, 54810, 54999, 56260, 59073, 61110, 65772, 73332, 75951, 78570, 78764, 82215, 84390, 91665, 98455, 101268, 109620, 109998, 118146, 122220, 126585, 151902, 157140, 164430, 168780, 177219, 183330, 196910, 219996, 227853, 236292, 253170, 274995, 295365, 303804, 328860, 354438, 366660, 379755, 393820, 455706, 506340, 531657, 549990, 590730, 708876, 759510, 886095, 911412, 1063314, 1099980, 1139265, 1181460, 1519020, 1594971, 1772190, 2126628, 2278530, 2658285, 3189942, 3544380, 4557060, 5316570, 6379884, 7974855, 10633140, 15949710, 31899420]

約数ペア:

[(1, 31899420), (2, 15949710), (3, 10633140), (4, 7974855), (5, 6379884), (6, 5316570), (7, 4557060), (9, 3544380), (10, 3189942), (12, 2658285), (14, 2278530), (15, 2126628), (18, 1772190), (20, 1594971), (21, 1519020), (27, 1181460), (28, 1139265), (29, 1099980), (30, 1063314), (35, 911412), (36, 886095), (42, 759510), (45, 708876), (54, 590730), (58, 549990), (60, 531657), (63, 506340), (70, 455706), (81, 393820), (84, 379755), (87, 366660), (90, 354438), (97, 328860), (105, 303804), (108, 295365), (116, 274995), (126, 253170), (135, 236292), (140, 227853), (145, 219996), (162, 196910), (174, 183330), (180, 177219), (189, 168780), (194, 164430), (203, 157140), (210, 151902), (252, 126585), (261, 122220), (270, 118146), (290, 109998), (291, 109620), (315, 101268), (324, 98455), (348, 91665), (378, 84390), (388, 82215), (405, 78764), (406, 78570), (420, 75951), (435, 73332), (485, 65772), (522, 61110), (540, 59073), (567, 56260), (580, 54999), (582, 54810), (609, 52380), (630, 50634), (679, 46980), (756, 42195), (783, 40740), (810, 39382), (812, 39285), (870, 36666), (873, 36540), (945, 33756), (970, 32886), (1015, 31428), (1044, 30555), (1134, 28130), (1164, 27405), (1218, 26190), (1260, 25317), (1305, 24444), (1358, 23490), (1455, 21924), (1566, 20370), (1620, 19691), (1740, 18333), (1746, 18270), (1827, 17460), (1890, 16878), (1940, 16443), (2030, 15714), (2037, 15660), (2268, 14065), (2349, 13580), (2436, 13095), (2610, 12222), (2619, 12180), (2716, 11745), (2813, 11340), (2835, 11252), (2910, 10962), (3045, 10476), (3132, 10185), (3395, 9396), (3492, 9135), (3654, 8730), (3780, 8439), (3915, 8148), (4060, 7857), (4074, 7830), (4365, 7308), (4698, 6790), (5220, 6111), (5238, 6090), (5481, 5820), (5626, 5670)]