257351010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{64499}}^1$

素因数の和:64535

約数の個数: 64

約数和(自身を含む): 743040000

約数和(自身を除く): 485688990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 64499, 128998, 193497, 322495, 386994, 451493, 644990, 902986, 967485, 1225481, 1354479, 1934970, 2257465, 2450962, 2708958, 3676443, 4514930, 6127405, 6772395, 7352886, 8578367, 12254810, 13544790, 17156734, 18382215, 25735101, 36764430, 42891835, 51470202, 85783670, 128675505, 257351010]

約数ペア:

[(1, 257351010), (2, 128675505), (3, 85783670), (5, 51470202), (6, 42891835), (7, 36764430), (10, 25735101), (14, 18382215), (15, 17156734), (19, 13544790), (21, 12254810), (30, 8578367), (35, 7352886), (38, 6772395), (42, 6127405), (57, 4514930), (70, 3676443), (95, 2708958), (105, 2450962), (114, 2257465), (133, 1934970), (190, 1354479), (210, 1225481), (266, 967485), (285, 902986), (399, 644990), (570, 451493), (665, 386994), (798, 322495), (1330, 193497), (1995, 128998), (3990, 64499)]