661983840

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{7297}}^1$

素因数の和:7331

約数の個数: 240

約数和(自身を含む): 2670367392

約数和(自身を除く): 2008383552

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4536, 5040, 5670, 6048, 6480, 7297, 7560, 9072, 10080, 11340, 12960, 14594, 15120, 18144, 21891, 22680, 29188, 30240, 36485, 43782, 45360, 51079, 58376, 65673, 72970, 87564, 90720, 102158, 109455, 116752, 131346, 145940, 153237, 175128, 197019, 204316, 218910, 233504, 255395, 262692, 291880, 306474, 328365, 350256, 394038, 408632, 437820, 459711, 510790, 525384, 583760, 591057, 612948, 656730, 700512, 766185, 788076, 817264, 875640, 919422, 985095, 1021580, 1050768, 1167520, 1182114, 1225896, 1313460, 1379133, 1532370, 1576152, 1634528, 1751280, 1838844, 1970190, 2043160, 2101536, 2298555, 2364228, 2451792, 2626920, 2758266, 2955285, 3064740, 3152304, 3502560, 3677688, 3940380, 4086320, 4137399, 4597110, 4728456, 4903584, 5253840, 5516532, 5910570, 6129480, 6304608, 6895665, 7355376, 7880760, 8172640, 8274798, 9194220, 9456912, 10507680, 11033064, 11821140, 12258960, 13791330, 14710752, 15761520, 16549596, 18388440, 18913824, 20686995, 22066128, 23642280, 24517920, 27582660, 31523040, 33099192, 36776880, 41373990, 44132256, 47284560, 55165320, 66198384, 73553760, 82747980, 94569120, 110330640, 132396768, 165495960, 220661280, 330991920, 661983840]

約数ペア:

[(1, 661983840), (2, 330991920), (3, 220661280), (4, 165495960), (5, 132396768), (6, 110330640), (7, 94569120), (8, 82747980), (9, 73553760), (10, 66198384), (12, 55165320), (14, 47284560), (15, 44132256), (16, 41373990), (18, 36776880), (20, 33099192), (21, 31523040), (24, 27582660), (27, 24517920), (28, 23642280), (30, 22066128), (32, 20686995), (35, 18913824), (36, 18388440), (40, 16549596), (42, 15761520), (45, 14710752), (48, 13791330), (54, 12258960), (56, 11821140), (60, 11033064), (63, 10507680), (70, 9456912), (72, 9194220), (80, 8274798), (81, 8172640), (84, 7880760), (90, 7355376), (96, 6895665), (105, 6304608), (108, 6129480), (112, 5910570), (120, 5516532), (126, 5253840), (135, 4903584), (140, 4728456), (144, 4597110), (160, 4137399), (162, 4086320), (168, 3940380), (180, 3677688), (189, 3502560), (210, 3152304), (216, 3064740), (224, 2955285), (240, 2758266), (252, 2626920), (270, 2451792), (280, 2364228), (288, 2298555), (315, 2101536), (324, 2043160), (336, 1970190), (360, 1838844), (378, 1751280), (405, 1634528), (420, 1576152), (432, 1532370), (480, 1379133), (504, 1313460), (540, 1225896), (560, 1182114), (567, 1167520), (630, 1050768), (648, 1021580), (672, 985095), (720, 919422), (756, 875640), (810, 817264), (840, 788076), (864, 766185), (945, 700512), (1008, 656730), (1080, 612948), (1120, 591057), (1134, 583760), (1260, 525384), (1296, 510790), (1440, 459711), (1512, 437820), (1620, 408632), (1680, 394038), (1890, 350256), (2016, 328365), (2160, 306474), (2268, 291880), (2520, 262692), (2592, 255395), (2835, 233504), (3024, 218910), (3240, 204316), (3360, 197019), (3780, 175128), (4320, 153237), (4536, 145940), (5040, 131346), (5670, 116752), (6048, 109455), (6480, 102158), (7297, 90720), (7560, 87564), (9072, 72970), (10080, 65673), (11340, 58376), (12960, 51079), (14594, 45360), (15120, 43782), (18144, 36485), (21891, 30240), (22680, 29188)]