16521440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^3\times {\mathrm{47}}^1$

素因数の和:101

約数の個数: 96

約数和(自身を含む): 43182720

約数和(自身を除く): 26661280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 65, 80, 94, 104, 130, 160, 169, 188, 208, 235, 260, 338, 376, 416, 470, 520, 611, 676, 752, 845, 940, 1040, 1222, 1352, 1504, 1690, 1880, 2080, 2197, 2444, 2704, 3055, 3380, 3760, 4394, 4888, 5408, 6110, 6760, 7520, 7943, 8788, 9776, 10985, 12220, 13520, 15886, 17576, 19552, 21970, 24440, 27040, 31772, 35152, 39715, 43940, 48880, 63544, 70304, 79430, 87880, 97760, 103259, 127088, 158860, 175760, 206518, 254176, 317720, 351520, 413036, 516295, 635440, 826072, 1032590, 1270880, 1652144, 2065180, 3304288, 4130360, 8260720, 16521440]

約数ペア:

[(1, 16521440), (2, 8260720), (4, 4130360), (5, 3304288), (8, 2065180), (10, 1652144), (13, 1270880), (16, 1032590), (20, 826072), (26, 635440), (32, 516295), (40, 413036), (47, 351520), (52, 317720), (65, 254176), (80, 206518), (94, 175760), (104, 158860), (130, 127088), (160, 103259), (169, 97760), (188, 87880), (208, 79430), (235, 70304), (260, 63544), (338, 48880), (376, 43940), (416, 39715), (470, 35152), (520, 31772), (611, 27040), (676, 24440), (752, 21970), (845, 19552), (940, 17576), (1040, 15886), (1222, 13520), (1352, 12220), (1504, 10985), (1690, 9776), (1880, 8788), (2080, 7943), (2197, 7520), (2444, 6760), (2704, 6110), (3055, 5408), (3380, 4888), (3760, 4394)]