20336680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 58222080

約数和(自身を除く): 37885400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 91, 104, 130, 140, 148, 151, 182, 185, 259, 260, 280, 296, 302, 364, 370, 455, 481, 518, 520, 604, 728, 740, 755, 910, 962, 1036, 1057, 1208, 1295, 1480, 1510, 1820, 1924, 1963, 2072, 2114, 2405, 2590, 3020, 3367, 3640, 3848, 3926, 4228, 4810, 5180, 5285, 5587, 6040, 6734, 7852, 8456, 9620, 9815, 10360, 10570, 11174, 13468, 13741, 15704, 16835, 19240, 19630, 21140, 22348, 26936, 27482, 27935, 33670, 39109, 39260, 42280, 44696, 54964, 55870, 67340, 68705, 72631, 78218, 78520, 109928, 111740, 134680, 137410, 145262, 156436, 195545, 223480, 274820, 290524, 312872, 363155, 391090, 508417, 549640, 581048, 726310, 782180, 1016834, 1452620, 1564360, 2033668, 2542085, 2905240, 4067336, 5084170, 10168340, 20336680]

約数ペア:

[(1, 20336680), (2, 10168340), (4, 5084170), (5, 4067336), (7, 2905240), (8, 2542085), (10, 2033668), (13, 1564360), (14, 1452620), (20, 1016834), (26, 782180), (28, 726310), (35, 581048), (37, 549640), (40, 508417), (52, 391090), (56, 363155), (65, 312872), (70, 290524), (74, 274820), (91, 223480), (104, 195545), (130, 156436), (140, 145262), (148, 137410), (151, 134680), (182, 111740), (185, 109928), (259, 78520), (260, 78218), (280, 72631), (296, 68705), (302, 67340), (364, 55870), (370, 54964), (455, 44696), (481, 42280), (518, 39260), (520, 39109), (604, 33670), (728, 27935), (740, 27482), (755, 26936), (910, 22348), (962, 21140), (1036, 19630), (1057, 19240), (1208, 16835), (1295, 15704), (1480, 13741), (1510, 13468), (1820, 11174), (1924, 10570), (1963, 10360), (2072, 9815), (2114, 9620), (2405, 8456), (2590, 7852), (3020, 6734), (3367, 6040), (3640, 5587), (3848, 5285), (3926, 5180), (4228, 4810)]