16803440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 24443920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 47, 80, 82, 94, 109, 164, 188, 205, 218, 235, 328, 376, 410, 436, 470, 545, 656, 752, 820, 872, 940, 1090, 1640, 1744, 1880, 1927, 2180, 3280, 3760, 3854, 4360, 4469, 5123, 7708, 8720, 8938, 9635, 10246, 15416, 17876, 19270, 20492, 22345, 25615, 30832, 35752, 38540, 40984, 44690, 51230, 71504, 77080, 81968, 89380, 102460, 154160, 178760, 204920, 210043, 357520, 409840, 420086, 840172, 1050215, 1680344, 2100430, 3360688, 4200860, 8401720, 16803440]

約数ペア:

[(1, 16803440), (2, 8401720), (4, 4200860), (5, 3360688), (8, 2100430), (10, 1680344), (16, 1050215), (20, 840172), (40, 420086), (41, 409840), (47, 357520), (80, 210043), (82, 204920), (94, 178760), (109, 154160), (164, 102460), (188, 89380), (205, 81968), (218, 77080), (235, 71504), (328, 51230), (376, 44690), (410, 40984), (436, 38540), (470, 35752), (545, 30832), (656, 25615), (752, 22345), (820, 20492), (872, 19270), (940, 17876), (1090, 15416), (1640, 10246), (1744, 9635), (1880, 8938), (1927, 8720), (2180, 7708), (3280, 5123), (3760, 4469), (3854, 4360)]