2019936680

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{317}}^1\times {\mathrm{661}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 4585038480

約数和(自身を除く): 2565101800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 317, 482, 634, 661, 964, 1205, 1268, 1322, 1585, 1928, 2410, 2536, 2644, 3170, 3305, 4820, 5288, 6340, 6610, 9640, 12680, 13220, 26440, 76397, 152794, 159301, 209537, 305588, 318602, 381985, 419074, 611176, 637204, 763970, 796505, 838148, 1047685, 1274408, 1527940, 1593010, 1676296, 2095370, 3055880, 3186020, 4190740, 6372040, 8381480, 50498417, 100996834, 201993668, 252492085, 403987336, 504984170, 1009968340, 2019936680]

約数ペア:

[(1, 2019936680), (2, 1009968340), (4, 504984170), (5, 403987336), (8, 252492085), (10, 201993668), (20, 100996834), (40, 50498417), (241, 8381480), (317, 6372040), (482, 4190740), (634, 3186020), (661, 3055880), (964, 2095370), (1205, 1676296), (1268, 1593010), (1322, 1527940), (1585, 1274408), (1928, 1047685), (2410, 838148), (2536, 796505), (2644, 763970), (3170, 637204), (3305, 611176), (4820, 419074), (5288, 381985), (6340, 318602), (6610, 305588), (9640, 209537), (12680, 159301), (13220, 152794), (26440, 76397)]