13278850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 27498240

約数和(自身を除く): 14219390

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 659, 775, 806, 1318, 1550, 2015, 3295, 4030, 6590, 8567, 10075, 16475, 17134, 20150, 20429, 32950, 40858, 42835, 85670, 102145, 204290, 214175, 265577, 428350, 510725, 531154, 1021450, 1327885, 2655770, 6639425, 13278850]

約数ペア:

[(1, 13278850), (2, 6639425), (5, 2655770), (10, 1327885), (13, 1021450), (25, 531154), (26, 510725), (31, 428350), (50, 265577), (62, 214175), (65, 204290), (130, 102145), (155, 85670), (310, 42835), (325, 40858), (403, 32950), (650, 20429), (659, 20150), (775, 17134), (806, 16475), (1318, 10075), (1550, 8567), (2015, 6590), (3295, 4030)]