645309180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{398339}}^1$

素因数の和:398360

約数の個数: 60

約数和(自身を含む): 2024363880

約数和(自身を除く): 1379054700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 398339, 796678, 1195017, 1593356, 1991695, 2390034, 3585051, 3983390, 4780068, 5975085, 7170102, 7966780, 10755153, 11950170, 14340204, 17925255, 21510306, 23900340, 32265459, 35850510, 43020612, 53775765, 64530918, 71701020, 107551530, 129061836, 161327295, 215103060, 322654590, 645309180]

約数ペア:

[(1, 645309180), (2, 322654590), (3, 215103060), (4, 161327295), (5, 129061836), (6, 107551530), (9, 71701020), (10, 64530918), (12, 53775765), (15, 43020612), (18, 35850510), (20, 32265459), (27, 23900340), (30, 21510306), (36, 17925255), (45, 14340204), (54, 11950170), (60, 10755153), (81, 7966780), (90, 7170102), (108, 5975085), (135, 4780068), (162, 3983390), (180, 3585051), (270, 2390034), (324, 1991695), (405, 1593356), (540, 1195017), (810, 796678), (1620, 398339)]