1388340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{857}}^1$

素因数の和:878

約数の個数: 60

約数和(自身を含む): 4360356

約数和(自身を除く): 2972016

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, 857, 1620, 1714, 2571, 3428, 4285, 5142, 7713, 8570, 10284, 12855, 15426, 17140, 23139, 25710, 30852, 38565, 46278, 51420, 69417, 77130, 92556, 115695, 138834, 154260, 231390, 277668, 347085, 462780, 694170, 1388340]

約数ペア:

[(1, 1388340), (2, 694170), (3, 462780), (4, 347085), (5, 277668), (6, 231390), (9, 154260), (10, 138834), (12, 115695), (15, 92556), (18, 77130), (20, 69417), (27, 51420), (30, 46278), (36, 38565), (45, 30852), (54, 25710), (60, 23139), (81, 17140), (90, 15426), (108, 12855), (135, 10284), (162, 8570), (180, 7713), (270, 5142), (324, 4285), (405, 3428), (540, 2571), (810, 1714), (857, 1620)]