84431380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 197074080

約数和(自身を除く): 112642700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 139, 220, 242, 251, 278, 484, 502, 556, 605, 695, 1004, 1210, 1255, 1390, 1529, 2420, 2510, 2761, 2780, 3058, 5020, 5522, 6116, 7645, 11044, 13805, 15290, 16819, 27610, 30371, 30580, 33638, 34889, 55220, 60742, 67276, 69778, 84095, 121484, 139556, 151855, 168190, 174445, 303710, 336380, 348890, 383779, 607420, 697780, 767558, 1535116, 1918895, 3837790, 4221569, 7675580, 8443138, 16886276, 21107845, 42215690, 84431380]

約数ペア:

[(1, 84431380), (2, 42215690), (4, 21107845), (5, 16886276), (10, 8443138), (11, 7675580), (20, 4221569), (22, 3837790), (44, 1918895), (55, 1535116), (110, 767558), (121, 697780), (139, 607420), (220, 383779), (242, 348890), (251, 336380), (278, 303710), (484, 174445), (502, 168190), (556, 151855), (605, 139556), (695, 121484), (1004, 84095), (1210, 69778), (1255, 67276), (1390, 60742), (1529, 55220), (2420, 34889), (2510, 33638), (2761, 30580), (2780, 30371), (3058, 27610), (5020, 16819), (5522, 15290), (6116, 13805), (7645, 11044)]