9901920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{421}}^1$

素因数の和:453

約数の個数: 144

約数和(自身を含む): 36369648

約数和(自身を除く): 26467728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 421, 480, 490, 560, 588, 672, 735, 784, 840, 842, 980, 1120, 1176, 1263, 1470, 1568, 1680, 1684, 1960, 2105, 2352, 2526, 2940, 2947, 3360, 3368, 3920, 4210, 4704, 5052, 5880, 5894, 6315, 6736, 7840, 8420, 8841, 10104, 11760, 11788, 12630, 13472, 14735, 16840, 17682, 20208, 20629, 23520, 23576, 25260, 29470, 33680, 35364, 40416, 41258, 44205, 47152, 50520, 58940, 61887, 67360, 70728, 82516, 88410, 94304, 101040, 103145, 117880, 123774, 141456, 165032, 176820, 202080, 206290, 235760, 247548, 282912, 309435, 330064, 353640, 412580, 471520, 495096, 618870, 660128, 707280, 825160, 990192, 1237740, 1414560, 1650320, 1980384, 2475480, 3300640, 4950960, 9901920]

約数ペア:

[(1, 9901920), (2, 4950960), (3, 3300640), (4, 2475480), (5, 1980384), (6, 1650320), (7, 1414560), (8, 1237740), (10, 990192), (12, 825160), (14, 707280), (15, 660128), (16, 618870), (20, 495096), (21, 471520), (24, 412580), (28, 353640), (30, 330064), (32, 309435), (35, 282912), (40, 247548), (42, 235760), (48, 206290), (49, 202080), (56, 176820), (60, 165032), (70, 141456), (80, 123774), (84, 117880), (96, 103145), (98, 101040), (105, 94304), (112, 88410), (120, 82516), (140, 70728), (147, 67360), (160, 61887), (168, 58940), (196, 50520), (210, 47152), (224, 44205), (240, 41258), (245, 40416), (280, 35364), (294, 33680), (336, 29470), (392, 25260), (420, 23576), (421, 23520), (480, 20629), (490, 20208), (560, 17682), (588, 16840), (672, 14735), (735, 13472), (784, 12630), (840, 11788), (842, 11760), (980, 10104), (1120, 8841), (1176, 8420), (1263, 7840), (1470, 6736), (1568, 6315), (1680, 5894), (1684, 5880), (1960, 5052), (2105, 4704), (2352, 4210), (2526, 3920), (2940, 3368), (2947, 3360)]