638435872

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{1279}}^1$

素因数の和:2129

約数の個数: 48

約数和(自身を含む): 1325721600

約数和(自身を除く): 687285728

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 821, 1279, 1642, 2558, 3284, 5116, 6568, 10232, 13136, 15599, 20464, 24301, 26272, 31198, 40928, 48602, 62396, 97204, 124792, 194408, 249584, 388816, 499168, 777632, 1050059, 2100118, 4200236, 8400472, 16800944, 19951121, 33601888, 39902242, 79804484, 159608968, 319217936, 638435872]

約数ペア:

[(1, 638435872), (2, 319217936), (4, 159608968), (8, 79804484), (16, 39902242), (19, 33601888), (32, 19951121), (38, 16800944), (76, 8400472), (152, 4200236), (304, 2100118), (608, 1050059), (821, 777632), (1279, 499168), (1642, 388816), (2558, 249584), (3284, 194408), (5116, 124792), (6568, 97204), (10232, 62396), (13136, 48602), (15599, 40928), (20464, 31198), (24301, 26272)]