252826520

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 578810880

約数和(自身を除く): 325984360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 157, 254, 314, 317, 508, 628, 634, 635, 785, 1016, 1256, 1268, 1270, 1570, 1585, 2536, 2540, 3140, 3170, 5080, 6280, 6340, 12680, 19939, 39878, 40259, 49769, 79756, 80518, 99538, 99695, 159512, 161036, 199076, 199390, 201295, 248845, 322072, 398152, 398780, 402590, 497690, 797560, 805180, 995380, 1610360, 1990760, 6320663, 12641326, 25282652, 31603315, 50565304, 63206630, 126413260, 252826520]

約数ペア:

[(1, 252826520), (2, 126413260), (4, 63206630), (5, 50565304), (8, 31603315), (10, 25282652), (20, 12641326), (40, 6320663), (127, 1990760), (157, 1610360), (254, 995380), (314, 805180), (317, 797560), (508, 497690), (628, 402590), (634, 398780), (635, 398152), (785, 322072), (1016, 248845), (1256, 201295), (1268, 199390), (1270, 199076), (1570, 161036), (1585, 159512), (2536, 99695), (2540, 99538), (3140, 80518), (3170, 79756), (5080, 49769), (6280, 40259), (6340, 39878), (12680, 19939)]