13121900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 31664640

約数和(自身を除く): 18542740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 151, 158, 220, 275, 302, 316, 395, 550, 604, 755, 790, 869, 1100, 1510, 1580, 1661, 1738, 1975, 3020, 3322, 3476, 3775, 3950, 4345, 6644, 7550, 7900, 8305, 8690, 11929, 15100, 16610, 17380, 21725, 23858, 33220, 41525, 43450, 47716, 59645, 83050, 86900, 119290, 131219, 166100, 238580, 262438, 298225, 524876, 596450, 656095, 1192900, 1312190, 2624380, 3280475, 6560950, 13121900]

約数ペア:

[(1, 13121900), (2, 6560950), (4, 3280475), (5, 2624380), (10, 1312190), (11, 1192900), (20, 656095), (22, 596450), (25, 524876), (44, 298225), (50, 262438), (55, 238580), (79, 166100), (100, 131219), (110, 119290), (151, 86900), (158, 83050), (220, 59645), (275, 47716), (302, 43450), (316, 41525), (395, 33220), (550, 23858), (604, 21725), (755, 17380), (790, 16610), (869, 15100), (1100, 11929), (1510, 8690), (1580, 8305), (1661, 7900), (1738, 7550), (1975, 6644), (3020, 4345), (3322, 3950), (3476, 3775)]