19800444

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 51048144

約数和(自身を除く): 31247700

約数列:

[1, 2, 3, 4, 6, 12, 17, 31, 34, 51, 62, 68, 93, 101, 102, 124, 186, 202, 204, 303, 372, 404, 527, 606, 961, 1054, 1212, 1581, 1717, 1922, 2108, 2883, 3131, 3162, 3434, 3844, 5151, 5766, 6262, 6324, 6868, 9393, 10302, 11532, 12524, 16337, 18786, 20604, 32674, 37572, 49011, 53227, 65348, 97061, 98022, 106454, 159681, 194122, 196044, 212908, 291183, 319362, 388244, 582366, 638724, 1164732, 1650037, 3300074, 4950111, 6600148, 9900222, 19800444]

約数ペア:

[(1, 19800444), (2, 9900222), (3, 6600148), (4, 4950111), (6, 3300074), (12, 1650037), (17, 1164732), (31, 638724), (34, 582366), (51, 388244), (62, 319362), (68, 291183), (93, 212908), (101, 196044), (102, 194122), (124, 159681), (186, 106454), (202, 98022), (204, 97061), (303, 65348), (372, 53227), (404, 49011), (527, 37572), (606, 32674), (961, 20604), (1054, 18786), (1212, 16337), (1581, 12524), (1717, 11532), (1922, 10302), (2108, 9393), (2883, 6868), (3131, 6324), (3162, 6262), (3434, 5766), (3844, 5151)]