661984960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:343

約数の個数: 224

約数和(自身を含む): 1966325760

約数和(自身を除く): 1304340800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 127, 130, 140, 160, 179, 182, 208, 224, 254, 260, 280, 320, 358, 364, 416, 448, 455, 508, 520, 560, 635, 716, 728, 832, 889, 895, 910, 1016, 1040, 1120, 1253, 1270, 1432, 1456, 1651, 1778, 1790, 1820, 2032, 2080, 2240, 2327, 2506, 2540, 2864, 2912, 3302, 3556, 3580, 3640, 4064, 4160, 4445, 4654, 5012, 5080, 5728, 5824, 6265, 6604, 7112, 7160, 7280, 8128, 8255, 8890, 9308, 10024, 10160, 11456, 11557, 11635, 12530, 13208, 14224, 14320, 14560, 16289, 16510, 17780, 18616, 20048, 20320, 22733, 23114, 23270, 25060, 26416, 28448, 28640, 29120, 32578, 33020, 35560, 37232, 40096, 40640, 45466, 46228, 46540, 50120, 52832, 56896, 57280, 57785, 65156, 66040, 71120, 74464, 80192, 81445, 90932, 92456, 93080, 100240, 105664, 113665, 115570, 130312, 132080, 142240, 148928, 159131, 162890, 181864, 184912, 186160, 200480, 227330, 231140, 260624, 264160, 284480, 295529, 318262, 325780, 363728, 369824, 372320, 400960, 454660, 462280, 521248, 528320, 591058, 636524, 651560, 727456, 739648, 744640, 795655, 909320, 924560, 1042496, 1182116, 1273048, 1303120, 1454912, 1477645, 1591310, 1818640, 1849120, 2068703, 2364232, 2546096, 2606240, 2955290, 3182620, 3637280, 3698240, 4137406, 4728464, 5092192, 5212480, 5910580, 6365240, 7274560, 8274812, 9456928, 10184384, 10343515, 11821160, 12730480, 16549624, 18913856, 20687030, 23642320, 25460960, 33099248, 41374060, 47284640, 50921920, 66198496, 82748120, 94569280, 132396992, 165496240, 330992480, 661984960]

約数ペア:

[(1, 661984960), (2, 330992480), (4, 165496240), (5, 132396992), (7, 94569280), (8, 82748120), (10, 66198496), (13, 50921920), (14, 47284640), (16, 41374060), (20, 33099248), (26, 25460960), (28, 23642320), (32, 20687030), (35, 18913856), (40, 16549624), (52, 12730480), (56, 11821160), (64, 10343515), (65, 10184384), (70, 9456928), (80, 8274812), (91, 7274560), (104, 6365240), (112, 5910580), (127, 5212480), (130, 5092192), (140, 4728464), (160, 4137406), (179, 3698240), (182, 3637280), (208, 3182620), (224, 2955290), (254, 2606240), (260, 2546096), (280, 2364232), (320, 2068703), (358, 1849120), (364, 1818640), (416, 1591310), (448, 1477645), (455, 1454912), (508, 1303120), (520, 1273048), (560, 1182116), (635, 1042496), (716, 924560), (728, 909320), (832, 795655), (889, 744640), (895, 739648), (910, 727456), (1016, 651560), (1040, 636524), (1120, 591058), (1253, 528320), (1270, 521248), (1432, 462280), (1456, 454660), (1651, 400960), (1778, 372320), (1790, 369824), (1820, 363728), (2032, 325780), (2080, 318262), (2240, 295529), (2327, 284480), (2506, 264160), (2540, 260624), (2864, 231140), (2912, 227330), (3302, 200480), (3556, 186160), (3580, 184912), (3640, 181864), (4064, 162890), (4160, 159131), (4445, 148928), (4654, 142240), (5012, 132080), (5080, 130312), (5728, 115570), (5824, 113665), (6265, 105664), (6604, 100240), (7112, 93080), (7160, 92456), (7280, 90932), (8128, 81445), (8255, 80192), (8890, 74464), (9308, 71120), (10024, 66040), (10160, 65156), (11456, 57785), (11557, 57280), (11635, 56896), (12530, 52832), (13208, 50120), (14224, 46540), (14320, 46228), (14560, 45466), (16289, 40640), (16510, 40096), (17780, 37232), (18616, 35560), (20048, 33020), (20320, 32578), (22733, 29120), (23114, 28640), (23270, 28448), (25060, 26416)]