217426860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172561}}^1$

素因数の和:172583

約数の個数: 72

約数和(自身を含む): 753750816

約数和(自身を除く): 536323956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172561, 345122, 517683, 690244, 862805, 1035366, 1207927, 1553049, 1725610, 2070732, 2415854, 2588415, 3106098, 3451220, 3623781, 4831708, 5176830, 6039635, 6212196, 7247562, 7765245, 10353660, 10871343, 12079270, 14495124, 15530490, 18118905, 21742686, 24158540, 31060980, 36237810, 43485372, 54356715, 72475620, 108713430, 217426860]

約数ペア:

[(1, 217426860), (2, 108713430), (3, 72475620), (4, 54356715), (5, 43485372), (6, 36237810), (7, 31060980), (9, 24158540), (10, 21742686), (12, 18118905), (14, 15530490), (15, 14495124), (18, 12079270), (20, 10871343), (21, 10353660), (28, 7765245), (30, 7247562), (35, 6212196), (36, 6039635), (42, 5176830), (45, 4831708), (60, 3623781), (63, 3451220), (70, 3106098), (84, 2588415), (90, 2415854), (105, 2070732), (126, 1725610), (140, 1553049), (180, 1207927), (210, 1035366), (252, 862805), (315, 690244), (420, 517683), (630, 345122), (1260, 172561)]