1997647564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{631}}^1$

素因数の和:899

約数の個数: 72

約数和(自身を含む): 3991651328

約数和(自身を除く): 1994003764

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 121, 124, 211, 242, 341, 422, 484, 631, 682, 844, 1262, 1364, 2321, 2524, 3751, 4642, 6541, 6941, 7502, 9284, 13082, 13882, 15004, 19561, 25531, 26164, 27764, 39122, 51062, 71951, 76351, 78244, 102124, 133141, 143902, 152702, 215171, 266282, 287804, 305404, 430342, 532564, 791461, 860684, 1464551, 1582922, 2366881, 2929102, 3165844, 4127371, 4733762, 5858204, 8254742, 9467524, 16110061, 16509484, 32220122, 45401081, 64440244, 90802162, 181604324, 499411891, 998823782, 1997647564]

約数ペア:

[(1, 1997647564), (2, 998823782), (4, 499411891), (11, 181604324), (22, 90802162), (31, 64440244), (44, 45401081), (62, 32220122), (121, 16509484), (124, 16110061), (211, 9467524), (242, 8254742), (341, 5858204), (422, 4733762), (484, 4127371), (631, 3165844), (682, 2929102), (844, 2366881), (1262, 1582922), (1364, 1464551), (2321, 860684), (2524, 791461), (3751, 532564), (4642, 430342), (6541, 305404), (6941, 287804), (7502, 266282), (9284, 215171), (13082, 152702), (13882, 143902), (15004, 133141), (19561, 102124), (25531, 78244), (26164, 76351), (27764, 71951), (39122, 51062)]