20846280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 256

約数和(自身を含む): 81285120

約数和(自身を除く): 60438840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 23, 24, 26, 28, 30, 35, 39, 40, 42, 46, 52, 56, 60, 65, 69, 70, 78, 83, 84, 91, 92, 104, 105, 115, 120, 130, 138, 140, 156, 161, 166, 168, 182, 184, 195, 210, 230, 249, 260, 273, 276, 280, 299, 312, 322, 332, 345, 364, 390, 415, 420, 455, 460, 483, 498, 520, 546, 552, 581, 598, 644, 664, 690, 728, 780, 805, 830, 840, 897, 910, 920, 966, 996, 1079, 1092, 1162, 1196, 1245, 1288, 1365, 1380, 1495, 1560, 1610, 1660, 1743, 1794, 1820, 1909, 1932, 1992, 2093, 2158, 2184, 2324, 2392, 2415, 2490, 2730, 2760, 2905, 2990, 3220, 3237, 3320, 3486, 3588, 3640, 3818, 3864, 4186, 4316, 4485, 4648, 4830, 4980, 5395, 5460, 5727, 5810, 5980, 6279, 6440, 6474, 6972, 7176, 7553, 7636, 8372, 8632, 8715, 8970, 9545, 9660, 9960, 10465, 10790, 10920, 11454, 11620, 11960, 12558, 12948, 13363, 13944, 15106, 15272, 16185, 16744, 17430, 17940, 19090, 19320, 20930, 21580, 22659, 22908, 23240, 24817, 25116, 25896, 26726, 28635, 30212, 31395, 32370, 34860, 35880, 37765, 38180, 40089, 41860, 43160, 45318, 45816, 49634, 50232, 53452, 57270, 60424, 62790, 64740, 66815, 69720, 74451, 75530, 76360, 80178, 83720, 90636, 99268, 106904, 113295, 114540, 124085, 125580, 129480, 133630, 148902, 151060, 160356, 173719, 181272, 198536, 200445, 226590, 229080, 248170, 251160, 267260, 297804, 302120, 320712, 347438, 372255, 400890, 453180, 496340, 521157, 534520, 595608, 694876, 744510, 801780, 868595, 906360, 992680, 1042314, 1389752, 1489020, 1603560, 1737190, 2084628, 2605785, 2978040, 3474380, 4169256, 5211570, 6948760, 10423140, 20846280]

約数ペア:

[(1, 20846280), (2, 10423140), (3, 6948760), (4, 5211570), (5, 4169256), (6, 3474380), (7, 2978040), (8, 2605785), (10, 2084628), (12, 1737190), (13, 1603560), (14, 1489020), (15, 1389752), (20, 1042314), (21, 992680), (23, 906360), (24, 868595), (26, 801780), (28, 744510), (30, 694876), (35, 595608), (39, 534520), (40, 521157), (42, 496340), (46, 453180), (52, 400890), (56, 372255), (60, 347438), (65, 320712), (69, 302120), (70, 297804), (78, 267260), (83, 251160), (84, 248170), (91, 229080), (92, 226590), (104, 200445), (105, 198536), (115, 181272), (120, 173719), (130, 160356), (138, 151060), (140, 148902), (156, 133630), (161, 129480), (166, 125580), (168, 124085), (182, 114540), (184, 113295), (195, 106904), (210, 99268), (230, 90636), (249, 83720), (260, 80178), (273, 76360), (276, 75530), (280, 74451), (299, 69720), (312, 66815), (322, 64740), (332, 62790), (345, 60424), (364, 57270), (390, 53452), (415, 50232), (420, 49634), (455, 45816), (460, 45318), (483, 43160), (498, 41860), (520, 40089), (546, 38180), (552, 37765), (581, 35880), (598, 34860), (644, 32370), (664, 31395), (690, 30212), (728, 28635), (780, 26726), (805, 25896), (830, 25116), (840, 24817), (897, 23240), (910, 22908), (920, 22659), (966, 21580), (996, 20930), (1079, 19320), (1092, 19090), (1162, 17940), (1196, 17430), (1245, 16744), (1288, 16185), (1365, 15272), (1380, 15106), (1495, 13944), (1560, 13363), (1610, 12948), (1660, 12558), (1743, 11960), (1794, 11620), (1820, 11454), (1909, 10920), (1932, 10790), (1992, 10465), (2093, 9960), (2158, 9660), (2184, 9545), (2324, 8970), (2392, 8715), (2415, 8632), (2490, 8372), (2730, 7636), (2760, 7553), (2905, 7176), (2990, 6972), (3220, 6474), (3237, 6440), (3320, 6279), (3486, 5980), (3588, 5810), (3640, 5727), (3818, 5460), (3864, 5395), (4186, 4980), (4316, 4830), (4485, 4648)]