25885220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4007}}^1$

素因数の和:4052

約数の個数: 48

約数和(自身を含む): 60600960

約数和(自身を除く): 34715740

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 4007, 6460, 8014, 16028, 20035, 40070, 68119, 76133, 80140, 136238, 152266, 272476, 304532, 340595, 380665, 681190, 761330, 1294261, 1362380, 1522660, 2588522, 5177044, 6471305, 12942610, 25885220]

約数ペア:

[(1, 25885220), (2, 12942610), (4, 6471305), (5, 5177044), (10, 2588522), (17, 1522660), (19, 1362380), (20, 1294261), (34, 761330), (38, 681190), (68, 380665), (76, 340595), (85, 304532), (95, 272476), (170, 152266), (190, 136238), (323, 80140), (340, 76133), (380, 68119), (646, 40070), (1292, 20035), (1615, 16028), (3230, 8014), (4007, 6460)]