20154680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 57456000

約数和(自身を除く): 37301320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 113, 130, 140, 182, 196, 226, 245, 260, 280, 343, 364, 392, 452, 455, 490, 520, 565, 637, 686, 728, 791, 904, 910, 980, 1130, 1274, 1372, 1469, 1582, 1715, 1820, 1960, 2260, 2548, 2744, 2938, 3164, 3185, 3430, 3640, 3955, 4459, 4520, 5096, 5537, 5876, 6328, 6370, 6860, 7345, 7910, 8918, 10283, 11074, 11752, 12740, 13720, 14690, 15820, 17836, 20566, 22148, 22295, 25480, 27685, 29380, 31640, 35672, 38759, 41132, 44296, 44590, 51415, 55370, 58760, 71981, 77518, 82264, 89180, 102830, 110740, 143962, 155036, 178360, 193795, 205660, 221480, 287924, 310072, 359905, 387590, 411320, 503867, 575848, 719810, 775180, 1007734, 1439620, 1550360, 2015468, 2519335, 2879240, 4030936, 5038670, 10077340, 20154680]

約数ペア:

[(1, 20154680), (2, 10077340), (4, 5038670), (5, 4030936), (7, 2879240), (8, 2519335), (10, 2015468), (13, 1550360), (14, 1439620), (20, 1007734), (26, 775180), (28, 719810), (35, 575848), (40, 503867), (49, 411320), (52, 387590), (56, 359905), (65, 310072), (70, 287924), (91, 221480), (98, 205660), (104, 193795), (113, 178360), (130, 155036), (140, 143962), (182, 110740), (196, 102830), (226, 89180), (245, 82264), (260, 77518), (280, 71981), (343, 58760), (364, 55370), (392, 51415), (452, 44590), (455, 44296), (490, 41132), (520, 38759), (565, 35672), (637, 31640), (686, 29380), (728, 27685), (791, 25480), (904, 22295), (910, 22148), (980, 20566), (1130, 17836), (1274, 15820), (1372, 14690), (1469, 13720), (1582, 12740), (1715, 11752), (1820, 11074), (1960, 10283), (2260, 8918), (2548, 7910), (2744, 7345), (2938, 6860), (3164, 6370), (3185, 6328), (3430, 5876), (3640, 5537), (3955, 5096), (4459, 4520)]