1999558288

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{28027}}^1$

素因数の和:28069

約数の個数: 80

約数和(自身を含む): 4865660800

約数和(自身を除く): 2866102512

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 343, 364, 392, 637, 686, 728, 784, 1274, 1372, 1456, 2548, 2744, 4459, 5096, 5488, 8918, 10192, 17836, 28027, 35672, 56054, 71344, 112108, 196189, 224216, 364351, 392378, 448432, 728702, 784756, 1373323, 1457404, 1569512, 2550457, 2746646, 2914808, 3139024, 5100914, 5493292, 5829616, 9613261, 10201828, 10986584, 17853199, 19226522, 20403656, 21973168, 35706398, 38453044, 40807312, 71412796, 76906088, 124972393, 142825592, 153812176, 249944786, 285651184, 499889572, 999779144, 1999558288]

約数ペア:

[(1, 1999558288), (2, 999779144), (4, 499889572), (7, 285651184), (8, 249944786), (13, 153812176), (14, 142825592), (16, 124972393), (26, 76906088), (28, 71412796), (49, 40807312), (52, 38453044), (56, 35706398), (91, 21973168), (98, 20403656), (104, 19226522), (112, 17853199), (182, 10986584), (196, 10201828), (208, 9613261), (343, 5829616), (364, 5493292), (392, 5100914), (637, 3139024), (686, 2914808), (728, 2746646), (784, 2550457), (1274, 1569512), (1372, 1457404), (1456, 1373323), (2548, 784756), (2744, 728702), (4459, 448432), (5096, 392378), (5488, 364351), (8918, 224216), (10192, 196189), (17836, 112108), (28027, 71344), (35672, 56054)]