20121360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 76334400

約数和(自身を除く): 56213040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 42, 48, 49, 56, 58, 59, 60, 70, 80, 84, 87, 98, 105, 112, 116, 118, 120, 140, 145, 147, 168, 174, 177, 196, 203, 210, 232, 236, 240, 245, 280, 290, 294, 295, 336, 348, 354, 392, 406, 413, 420, 435, 464, 472, 490, 560, 580, 588, 590, 609, 696, 708, 735, 784, 812, 826, 840, 870, 885, 944, 980, 1015, 1160, 1176, 1180, 1218, 1239, 1392, 1416, 1421, 1470, 1624, 1652, 1680, 1711, 1740, 1770, 1960, 2030, 2065, 2320, 2352, 2360, 2436, 2478, 2832, 2842, 2891, 2940, 3045, 3248, 3304, 3422, 3480, 3540, 3920, 4060, 4130, 4263, 4720, 4872, 4956, 5133, 5684, 5782, 5880, 6090, 6195, 6608, 6844, 6960, 7080, 7105, 8120, 8260, 8526, 8555, 8673, 9744, 9912, 10266, 11368, 11564, 11760, 11977, 12180, 12390, 13688, 14160, 14210, 14455, 16240, 16520, 17052, 17110, 17346, 19824, 20532, 21315, 22736, 23128, 23954, 24360, 24780, 25665, 27376, 28420, 28910, 33040, 34104, 34220, 34692, 35931, 41064, 42630, 43365, 46256, 47908, 48720, 49560, 51330, 56840, 57820, 59885, 68208, 68440, 69384, 71862, 82128, 83839, 85260, 86730, 95816, 99120, 102660, 113680, 115640, 119770, 136880, 138768, 143724, 167678, 170520, 173460, 179655, 191632, 205320, 231280, 239540, 251517, 287448, 335356, 341040, 346920, 359310, 410640, 419195, 479080, 503034, 574896, 670712, 693840, 718620, 838390, 958160, 1006068, 1257585, 1341424, 1437240, 1676780, 2012136, 2515170, 2874480, 3353560, 4024272, 5030340, 6707120, 10060680, 20121360]

約数ペア:

[(1, 20121360), (2, 10060680), (3, 6707120), (4, 5030340), (5, 4024272), (6, 3353560), (7, 2874480), (8, 2515170), (10, 2012136), (12, 1676780), (14, 1437240), (15, 1341424), (16, 1257585), (20, 1006068), (21, 958160), (24, 838390), (28, 718620), (29, 693840), (30, 670712), (35, 574896), (40, 503034), (42, 479080), (48, 419195), (49, 410640), (56, 359310), (58, 346920), (59, 341040), (60, 335356), (70, 287448), (80, 251517), (84, 239540), (87, 231280), (98, 205320), (105, 191632), (112, 179655), (116, 173460), (118, 170520), (120, 167678), (140, 143724), (145, 138768), (147, 136880), (168, 119770), (174, 115640), (177, 113680), (196, 102660), (203, 99120), (210, 95816), (232, 86730), (236, 85260), (240, 83839), (245, 82128), (280, 71862), (290, 69384), (294, 68440), (295, 68208), (336, 59885), (348, 57820), (354, 56840), (392, 51330), (406, 49560), (413, 48720), (420, 47908), (435, 46256), (464, 43365), (472, 42630), (490, 41064), (560, 35931), (580, 34692), (588, 34220), (590, 34104), (609, 33040), (696, 28910), (708, 28420), (735, 27376), (784, 25665), (812, 24780), (826, 24360), (840, 23954), (870, 23128), (885, 22736), (944, 21315), (980, 20532), (1015, 19824), (1160, 17346), (1176, 17110), (1180, 17052), (1218, 16520), (1239, 16240), (1392, 14455), (1416, 14210), (1421, 14160), (1470, 13688), (1624, 12390), (1652, 12180), (1680, 11977), (1711, 11760), (1740, 11564), (1770, 11368), (1960, 10266), (2030, 9912), (2065, 9744), (2320, 8673), (2352, 8555), (2360, 8526), (2436, 8260), (2478, 8120), (2832, 7105), (2842, 7080), (2891, 6960), (2940, 6844), (3045, 6608), (3248, 6195), (3304, 6090), (3422, 5880), (3480, 5782), (3540, 5684), (3920, 5133), (4060, 4956), (4130, 4872), (4263, 4720)]