20907250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 48222720

約数和(自身を除く): 27315470

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 875, 910, 919, 1625, 1750, 1838, 2275, 3250, 4550, 4595, 6433, 9190, 11375, 11947, 12866, 22750, 22975, 23894, 32165, 45950, 59735, 64330, 83629, 114875, 119470, 160825, 167258, 229750, 298675, 321650, 418145, 597350, 804125, 836290, 1493375, 1608250, 2090725, 2986750, 4181450, 10453625, 20907250]

約数ペア:

[(1, 20907250), (2, 10453625), (5, 4181450), (7, 2986750), (10, 2090725), (13, 1608250), (14, 1493375), (25, 836290), (26, 804125), (35, 597350), (50, 418145), (65, 321650), (70, 298675), (91, 229750), (125, 167258), (130, 160825), (175, 119470), (182, 114875), (250, 83629), (325, 64330), (350, 59735), (455, 45950), (650, 32165), (875, 23894), (910, 22975), (919, 22750), (1625, 12866), (1750, 11947), (1838, 11375), (2275, 9190), (3250, 6433), (4550, 4595)]