20884902016

素因数分解:

$2^7\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{7211}}^1$

素因数の和:7275

約数の個数: 128

約数和(自身を含む): 48462909120

約数和(自身を除く): 27578007104

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 121, 128, 136, 176, 187, 242, 272, 352, 374, 484, 544, 704, 748, 968, 1088, 1331, 1408, 1496, 1936, 2057, 2176, 2662, 2992, 3872, 4114, 5324, 5984, 7211, 7744, 8228, 10648, 11968, 14422, 15488, 16456, 21296, 22627, 23936, 28844, 32912, 42592, 45254, 57688, 65824, 79321, 85184, 90508, 115376, 122587, 131648, 158642, 170368, 181016, 230752, 245174, 263296, 317284, 362032, 461504, 490348, 634568, 724064, 872531, 923008, 980696, 1269136, 1348457, 1448128, 1745062, 1961392, 2538272, 2696914, 2896256, 3490124, 3922784, 5076544, 5393828, 6980248, 7845568, 9597841, 10153088, 10787656, 13960496, 14833027, 15691136, 19195682, 21575312, 27920992, 29666054, 38391364, 43150624, 55841984, 59332108, 76782728, 86301248, 111683968, 118664216, 153565456, 163163297, 172602496, 237328432, 307130912, 326326594, 474656864, 614261824, 652653188, 949313728, 1228523648, 1305306376, 1898627456, 2610612752, 5221225504, 10442451008, 20884902016]

約数ペア:

[(1, 20884902016), (2, 10442451008), (4, 5221225504), (8, 2610612752), (11, 1898627456), (16, 1305306376), (17, 1228523648), (22, 949313728), (32, 652653188), (34, 614261824), (44, 474656864), (64, 326326594), (68, 307130912), (88, 237328432), (121, 172602496), (128, 163163297), (136, 153565456), (176, 118664216), (187, 111683968), (242, 86301248), (272, 76782728), (352, 59332108), (374, 55841984), (484, 43150624), (544, 38391364), (704, 29666054), (748, 27920992), (968, 21575312), (1088, 19195682), (1331, 15691136), (1408, 14833027), (1496, 13960496), (1936, 10787656), (2057, 10153088), (2176, 9597841), (2662, 7845568), (2992, 6980248), (3872, 5393828), (4114, 5076544), (5324, 3922784), (5984, 3490124), (7211, 2896256), (7744, 2696914), (8228, 2538272), (10648, 1961392), (11968, 1745062), (14422, 1448128), (15488, 1348457), (16456, 1269136), (21296, 980696), (22627, 923008), (23936, 872531), (28844, 724064), (32912, 634568), (42592, 490348), (45254, 461504), (57688, 362032), (65824, 317284), (79321, 263296), (85184, 245174), (90508, 230752), (115376, 181016), (122587, 170368), (131648, 158642)]