206816680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19963}}^1$

素因数の和:20018

約数の個数: 64

約数和(自身を含む): 546215040

約数和(自身を除く): 339398360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 19963, 39926, 79852, 99815, 139741, 159704, 199630, 279482, 399260, 558964, 698705, 738631, 798520, 1117928, 1397410, 1477262, 2794820, 2954524, 3693155, 5170417, 5589640, 5909048, 7386310, 10340834, 14772620, 20681668, 25852085, 29545240, 41363336, 51704170, 103408340, 206816680]

約数ペア:

[(1, 206816680), (2, 103408340), (4, 51704170), (5, 41363336), (7, 29545240), (8, 25852085), (10, 20681668), (14, 14772620), (20, 10340834), (28, 7386310), (35, 5909048), (37, 5589640), (40, 5170417), (56, 3693155), (70, 2954524), (74, 2794820), (140, 1477262), (148, 1397410), (185, 1117928), (259, 798520), (280, 738631), (296, 698705), (370, 558964), (518, 399260), (740, 279482), (1036, 199630), (1295, 159704), (1480, 139741), (2072, 99815), (2590, 79852), (5180, 39926), (10360, 19963)]