19408680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17971}}^1$

素因数の和:17991

約数の個数: 64

約数和(自身を含む): 64699200

約数和(自身を除く): 45290520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 17971, 35942, 53913, 71884, 89855, 107826, 143768, 161739, 179710, 215652, 269565, 323478, 359420, 431304, 485217, 539130, 646956, 718840, 808695, 970434, 1078260, 1293912, 1617390, 1940868, 2156520, 2426085, 3234780, 3881736, 4852170, 6469560, 9704340, 19408680]

約数ペア:

[(1, 19408680), (2, 9704340), (3, 6469560), (4, 4852170), (5, 3881736), (6, 3234780), (8, 2426085), (9, 2156520), (10, 1940868), (12, 1617390), (15, 1293912), (18, 1078260), (20, 970434), (24, 808695), (27, 718840), (30, 646956), (36, 539130), (40, 485217), (45, 431304), (54, 359420), (60, 323478), (72, 269565), (90, 215652), (108, 179710), (120, 161739), (135, 143768), (180, 107826), (216, 89855), (270, 71884), (360, 53913), (540, 35942), (1080, 17971)]