19715150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:658

約数の個数: 72

約数和(自身を含む): 46012680

約数和(自身を除く): 26297530

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 49, 50, 65, 70, 91, 98, 130, 175, 182, 245, 325, 350, 455, 490, 619, 637, 650, 910, 1225, 1238, 1274, 2275, 2450, 3095, 3185, 4333, 4550, 6190, 6370, 8047, 8666, 15475, 15925, 16094, 21665, 30331, 30950, 31850, 40235, 43330, 56329, 60662, 80470, 108325, 112658, 151655, 201175, 216650, 281645, 303310, 394303, 402350, 563290, 758275, 788606, 1408225, 1516550, 1971515, 2816450, 3943030, 9857575, 19715150]

約数ペア:

[(1, 19715150), (2, 9857575), (5, 3943030), (7, 2816450), (10, 1971515), (13, 1516550), (14, 1408225), (25, 788606), (26, 758275), (35, 563290), (49, 402350), (50, 394303), (65, 303310), (70, 281645), (91, 216650), (98, 201175), (130, 151655), (175, 112658), (182, 108325), (245, 80470), (325, 60662), (350, 56329), (455, 43330), (490, 40235), (619, 31850), (637, 30950), (650, 30331), (910, 21665), (1225, 16094), (1238, 15925), (1274, 15475), (2275, 8666), (2450, 8047), (3095, 6370), (3185, 6190), (4333, 4550)]