1820495950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{400109}}^1$

素因数の和:400141

約数の個数: 48

約数和(自身を含む): 4167545760

約数和(自身を除く): 2347049810

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 400109, 800218, 2000545, 2800763, 4001090, 5201417, 5601526, 10002725, 10402834, 14003815, 20005450, 26007085, 28007630, 36409919, 52014170, 70019075, 72819838, 130035425, 140038150, 182049595, 260070850, 364099190, 910247975, 1820495950]

約数ペア:

[(1, 1820495950), (2, 910247975), (5, 364099190), (7, 260070850), (10, 182049595), (13, 140038150), (14, 130035425), (25, 72819838), (26, 70019075), (35, 52014170), (50, 36409919), (65, 28007630), (70, 26007085), (91, 20005450), (130, 14003815), (175, 10402834), (182, 10002725), (325, 5601526), (350, 5201417), (455, 4001090), (650, 2800763), (910, 2000545), (2275, 800218), (4550, 400109)]