138928720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 160

約数和(自身を含む): 387475200

約数和(自身を除く): 248546480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 61, 70, 80, 83, 98, 112, 122, 140, 166, 196, 244, 245, 280, 305, 332, 343, 392, 415, 427, 488, 490, 560, 581, 610, 664, 686, 784, 830, 854, 976, 980, 1162, 1220, 1328, 1372, 1660, 1708, 1715, 1960, 2135, 2324, 2440, 2744, 2905, 2989, 3320, 3416, 3430, 3920, 4067, 4270, 4648, 4880, 5063, 5488, 5810, 5978, 6640, 6832, 6860, 8134, 8540, 9296, 10126, 11620, 11956, 13720, 14945, 16268, 17080, 20252, 20335, 20923, 23240, 23912, 25315, 27440, 28469, 29890, 32536, 34160, 35441, 40504, 40670, 41846, 46480, 47824, 50630, 56938, 59780, 65072, 70882, 81008, 81340, 83692, 101260, 104615, 113876, 119560, 141764, 142345, 162680, 167384, 177205, 202520, 209230, 227752, 239120, 248087, 283528, 284690, 325360, 334768, 354410, 405040, 418460, 455504, 496174, 567056, 569380, 708820, 836920, 992348, 1138760, 1240435, 1417640, 1673840, 1736609, 1984696, 2277520, 2480870, 2835280, 3473218, 3969392, 4961740, 6946436, 8683045, 9923480, 13892872, 17366090, 19846960, 27785744, 34732180, 69464360, 138928720]

約数ペア:

[(1, 138928720), (2, 69464360), (4, 34732180), (5, 27785744), (7, 19846960), (8, 17366090), (10, 13892872), (14, 9923480), (16, 8683045), (20, 6946436), (28, 4961740), (35, 3969392), (40, 3473218), (49, 2835280), (56, 2480870), (61, 2277520), (70, 1984696), (80, 1736609), (83, 1673840), (98, 1417640), (112, 1240435), (122, 1138760), (140, 992348), (166, 836920), (196, 708820), (244, 569380), (245, 567056), (280, 496174), (305, 455504), (332, 418460), (343, 405040), (392, 354410), (415, 334768), (427, 325360), (488, 284690), (490, 283528), (560, 248087), (581, 239120), (610, 227752), (664, 209230), (686, 202520), (784, 177205), (830, 167384), (854, 162680), (976, 142345), (980, 141764), (1162, 119560), (1220, 113876), (1328, 104615), (1372, 101260), (1660, 83692), (1708, 81340), (1715, 81008), (1960, 70882), (2135, 65072), (2324, 59780), (2440, 56938), (2744, 50630), (2905, 47824), (2989, 46480), (3320, 41846), (3416, 40670), (3430, 40504), (3920, 35441), (4067, 34160), (4270, 32536), (4648, 29890), (4880, 28469), (5063, 27440), (5488, 25315), (5810, 23912), (5978, 23240), (6640, 20923), (6832, 20335), (6860, 20252), (8134, 17080), (8540, 16268), (9296, 14945), (10126, 13720), (11620, 11956)]