18830440

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 25233560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 79, 101, 118, 158, 202, 236, 295, 316, 395, 404, 472, 505, 590, 632, 790, 808, 1010, 1180, 1580, 2020, 2360, 3160, 4040, 4661, 5959, 7979, 9322, 11918, 15958, 18644, 23305, 23836, 29795, 31916, 37288, 39895, 46610, 47672, 59590, 63832, 79790, 93220, 119180, 159580, 186440, 238360, 319160, 470761, 941522, 1883044, 2353805, 3766088, 4707610, 9415220, 18830440]

約数ペア:

[(1, 18830440), (2, 9415220), (4, 4707610), (5, 3766088), (8, 2353805), (10, 1883044), (20, 941522), (40, 470761), (59, 319160), (79, 238360), (101, 186440), (118, 159580), (158, 119180), (202, 93220), (236, 79790), (295, 63832), (316, 59590), (395, 47672), (404, 46610), (472, 39895), (505, 37288), (590, 31916), (632, 29795), (790, 23836), (808, 23305), (1010, 18644), (1180, 15958), (1580, 11918), (2020, 9322), (2360, 7979), (3160, 5959), (4040, 4661)]