20450150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:534

約数の個数: 72

約数和(自身を含む): 46945656

約数和(自身を除く): 26495506

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 49, 50, 70, 85, 98, 119, 170, 175, 238, 245, 350, 425, 490, 491, 595, 833, 850, 982, 1190, 1225, 1666, 2450, 2455, 2975, 3437, 4165, 4910, 5950, 6874, 8330, 8347, 12275, 16694, 17185, 20825, 24059, 24550, 34370, 41650, 41735, 48118, 58429, 83470, 85925, 116858, 120295, 171850, 208675, 240590, 292145, 409003, 417350, 584290, 601475, 818006, 1202950, 1460725, 2045015, 2921450, 4090030, 10225075, 20450150]

約数ペア:

[(1, 20450150), (2, 10225075), (5, 4090030), (7, 2921450), (10, 2045015), (14, 1460725), (17, 1202950), (25, 818006), (34, 601475), (35, 584290), (49, 417350), (50, 409003), (70, 292145), (85, 240590), (98, 208675), (119, 171850), (170, 120295), (175, 116858), (238, 85925), (245, 83470), (350, 58429), (425, 48118), (490, 41735), (491, 41650), (595, 34370), (833, 24550), (850, 24059), (982, 20825), (1190, 17185), (1225, 16694), (1666, 12275), (2450, 8347), (2455, 8330), (2975, 6874), (3437, 5950), (4165, 4910)]