2054908900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{98321}}^1$

素因数の和:98365

約数の個数: 72

約数和(自身を含む): 5120609760

約数和(自身を除く): 3065700860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1045, 1100, 1900, 2090, 4180, 5225, 10450, 20900, 98321, 196642, 393284, 491605, 983210, 1081531, 1868099, 1966420, 2163062, 2458025, 3736198, 4326124, 4916050, 5407655, 7472396, 9340495, 9832100, 10815310, 18680990, 20549089, 21630620, 27038275, 37361980, 41098178, 46702475, 54076550, 82196356, 93404950, 102745445, 108153100, 186809900, 205490890, 410981780, 513727225, 1027454450, 2054908900]

約数ペア:

[(1, 2054908900), (2, 1027454450), (4, 513727225), (5, 410981780), (10, 205490890), (11, 186809900), (19, 108153100), (20, 102745445), (22, 93404950), (25, 82196356), (38, 54076550), (44, 46702475), (50, 41098178), (55, 37361980), (76, 27038275), (95, 21630620), (100, 20549089), (110, 18680990), (190, 10815310), (209, 9832100), (220, 9340495), (275, 7472396), (380, 5407655), (418, 4916050), (475, 4326124), (550, 3736198), (836, 2458025), (950, 2163062), (1045, 1966420), (1100, 1868099), (1900, 1081531), (2090, 983210), (4180, 491605), (5225, 393284), (10450, 196642), (20900, 98321)]