198450

素因数分解:

$2^1\times 3^4\times 5^2\times 7^2$

素因数の和:38

約数の個数: 90

約数和(自身を含む): 641421

約数和(自身を除く): 442971

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 49, 50, 54, 63, 70, 75, 81, 90, 98, 105, 126, 135, 147, 150, 162, 175, 189, 210, 225, 245, 270, 294, 315, 350, 378, 405, 441, 450, 490, 525, 567, 630, 675, 735, 810, 882, 945, 1050, 1134, 1225, 1323, 1350, 1470, 1575, 1890, 2025, 2205, 2450, 2646, 2835, 3150, 3675, 3969, 4050, 4410, 4725, 5670, 6615, 7350, 7938, 9450, 11025, 13230, 14175, 19845, 22050, 28350, 33075, 39690, 66150, 99225, 198450]

約数ペア:

[(1, 198450), (2, 99225), (3, 66150), (5, 39690), (6, 33075), (7, 28350), (9, 22050), (10, 19845), (14, 14175), (15, 13230), (18, 11025), (21, 9450), (25, 7938), (27, 7350), (30, 6615), (35, 5670), (42, 4725), (45, 4410), (49, 4050), (50, 3969), (54, 3675), (63, 3150), (70, 2835), (75, 2646), (81, 2450), (90, 2205), (98, 2025), (105, 1890), (126, 1575), (135, 1470), (147, 1350), (150, 1323), (162, 1225), (175, 1134), (189, 1050), (210, 945), (225, 882), (245, 810), (270, 735), (294, 675), (315, 630), (350, 567), (378, 525), (405, 490), (441, 450)]