638010

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 1814400

約数和(自身を除く): 1176390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 85, 90, 102, 135, 139, 153, 170, 255, 270, 278, 306, 417, 459, 510, 695, 765, 834, 918, 1251, 1390, 1530, 2085, 2295, 2363, 2502, 3753, 4170, 4590, 4726, 6255, 7089, 7506, 11815, 12510, 14178, 18765, 21267, 23630, 35445, 37530, 42534, 63801, 70890, 106335, 127602, 212670, 319005, 638010]

約数ペア:

[(1, 638010), (2, 319005), (3, 212670), (5, 127602), (6, 106335), (9, 70890), (10, 63801), (15, 42534), (17, 37530), (18, 35445), (27, 23630), (30, 21267), (34, 18765), (45, 14178), (51, 12510), (54, 11815), (85, 7506), (90, 7089), (102, 6255), (135, 4726), (139, 4590), (153, 4170), (170, 3753), (255, 2502), (270, 2363), (278, 2295), (306, 2085), (417, 1530), (459, 1390), (510, 1251), (695, 918), (765, 834)]