21103300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 49996800

約数和(自身を除く): 28893500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 380, 383, 475, 551, 580, 725, 766, 950, 1102, 1450, 1532, 1900, 1915, 2204, 2755, 2900, 3830, 5510, 7277, 7660, 9575, 11020, 11107, 13775, 14554, 19150, 22214, 27550, 29108, 36385, 38300, 44428, 55100, 55535, 72770, 111070, 145540, 181925, 211033, 222140, 277675, 363850, 422066, 555350, 727700, 844132, 1055165, 1110700, 2110330, 4220660, 5275825, 10551650, 21103300]

約数ペア:

[(1, 21103300), (2, 10551650), (4, 5275825), (5, 4220660), (10, 2110330), (19, 1110700), (20, 1055165), (25, 844132), (29, 727700), (38, 555350), (50, 422066), (58, 363850), (76, 277675), (95, 222140), (100, 211033), (116, 181925), (145, 145540), (190, 111070), (290, 72770), (380, 55535), (383, 55100), (475, 44428), (551, 38300), (580, 36385), (725, 29108), (766, 27550), (950, 22214), (1102, 19150), (1450, 14554), (1532, 13775), (1900, 11107), (1915, 11020), (2204, 9575), (2755, 7660), (2900, 7277), (3830, 5510)]