201491620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{599}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 469224000

約数和(自身を除く): 267732380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 139, 220, 242, 278, 484, 556, 599, 605, 695, 1198, 1210, 1390, 1529, 2396, 2420, 2780, 2995, 3058, 5990, 6116, 6589, 7645, 11980, 13178, 15290, 16819, 26356, 30580, 32945, 33638, 65890, 67276, 72479, 83261, 84095, 131780, 144958, 166522, 168190, 289916, 333044, 336380, 362395, 416305, 724790, 832610, 915871, 1449580, 1665220, 1831742, 3663484, 4579355, 9158710, 10074581, 18317420, 20149162, 40298324, 50372905, 100745810, 201491620]

約数ペア:

[(1, 201491620), (2, 100745810), (4, 50372905), (5, 40298324), (10, 20149162), (11, 18317420), (20, 10074581), (22, 9158710), (44, 4579355), (55, 3663484), (110, 1831742), (121, 1665220), (139, 1449580), (220, 915871), (242, 832610), (278, 724790), (484, 416305), (556, 362395), (599, 336380), (605, 333044), (695, 289916), (1198, 168190), (1210, 166522), (1390, 144958), (1529, 131780), (2396, 84095), (2420, 83261), (2780, 72479), (2995, 67276), (3058, 65890), (5990, 33638), (6116, 32945), (6589, 30580), (7645, 26356), (11980, 16819), (13178, 15290)]