261541020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{25793}}^1$

素因数の和:25831

約数の個数: 72

約数和(自身を含む): 793010736

約数和(自身を除く): 531469716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 10140, 25793, 51586, 77379, 103172, 128965, 154758, 257930, 309516, 335309, 386895, 515860, 670618, 773790, 1005927, 1341236, 1547580, 1676545, 2011854, 3353090, 4023708, 4359017, 5029635, 6706180, 8718034, 10059270, 13077051, 17436068, 20118540, 21795085, 26154102, 43590170, 52308204, 65385255, 87180340, 130770510, 261541020]

約数ペア:

[(1, 261541020), (2, 130770510), (3, 87180340), (4, 65385255), (5, 52308204), (6, 43590170), (10, 26154102), (12, 21795085), (13, 20118540), (15, 17436068), (20, 13077051), (26, 10059270), (30, 8718034), (39, 6706180), (52, 5029635), (60, 4359017), (65, 4023708), (78, 3353090), (130, 2011854), (156, 1676545), (169, 1547580), (195, 1341236), (260, 1005927), (338, 773790), (390, 670618), (507, 515860), (676, 386895), (780, 335309), (845, 309516), (1014, 257930), (1690, 154758), (2028, 128965), (2535, 103172), (3380, 77379), (5070, 51586), (10140, 25793)]