20660948

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 47275200

約数和(自身を除く): 26614252

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 49, 74, 77, 98, 148, 154, 196, 259, 308, 343, 407, 518, 539, 686, 814, 1036, 1078, 1369, 1372, 1628, 1813, 2156, 2738, 2849, 3626, 3773, 5476, 5698, 7252, 7546, 9583, 11396, 12691, 15059, 15092, 19166, 19943, 25382, 30118, 38332, 39886, 50764, 60236, 67081, 79772, 105413, 134162, 139601, 210826, 268324, 279202, 421652, 469567, 558404, 737891, 939134, 1475782, 1878268, 2951564, 5165237, 10330474, 20660948]

約数ペア:

[(1, 20660948), (2, 10330474), (4, 5165237), (7, 2951564), (11, 1878268), (14, 1475782), (22, 939134), (28, 737891), (37, 558404), (44, 469567), (49, 421652), (74, 279202), (77, 268324), (98, 210826), (148, 139601), (154, 134162), (196, 105413), (259, 79772), (308, 67081), (343, 60236), (407, 50764), (518, 39886), (539, 38332), (686, 30118), (814, 25382), (1036, 19943), (1078, 19166), (1369, 15092), (1372, 15059), (1628, 12691), (1813, 11396), (2156, 9583), (2738, 7546), (2849, 7252), (3626, 5698), (3773, 5476)]