242440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:70

約数の個数: 64

約数和(自身を含む): 648000

約数和(自身を除く): 405560

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 29, 38, 40, 44, 55, 58, 76, 88, 95, 110, 116, 145, 152, 190, 209, 220, 232, 290, 319, 380, 418, 440, 551, 580, 638, 760, 836, 1045, 1102, 1160, 1276, 1595, 1672, 2090, 2204, 2552, 2755, 3190, 4180, 4408, 5510, 6061, 6380, 8360, 11020, 12122, 12760, 22040, 24244, 30305, 48488, 60610, 121220, 242440]

約数ペア:

[(1, 242440), (2, 121220), (4, 60610), (5, 48488), (8, 30305), (10, 24244), (11, 22040), (19, 12760), (20, 12122), (22, 11020), (29, 8360), (38, 6380), (40, 6061), (44, 5510), (55, 4408), (58, 4180), (76, 3190), (88, 2755), (95, 2552), (110, 2204), (116, 2090), (145, 1672), (152, 1595), (190, 1276), (209, 1160), (220, 1102), (232, 1045), (290, 836), (319, 760), (380, 638), (418, 580), (440, 551)]