199939600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{101}}^2$

素因数の和:234

約数の個数: 135

約数和(自身を含む): 564367431

約数和(自身を除く): 364427831

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 101, 112, 140, 175, 196, 200, 202, 245, 280, 350, 392, 400, 404, 490, 505, 560, 700, 707, 784, 808, 980, 1010, 1225, 1400, 1414, 1616, 1960, 2020, 2450, 2525, 2800, 2828, 3535, 3920, 4040, 4900, 4949, 5050, 5656, 7070, 8080, 9800, 9898, 10100, 10201, 11312, 14140, 17675, 19600, 19796, 20200, 20402, 24745, 28280, 35350, 39592, 40400, 40804, 49490, 51005, 56560, 70700, 71407, 79184, 81608, 98980, 102010, 123725, 141400, 142814, 163216, 197960, 204020, 247450, 255025, 282800, 285628, 357035, 395920, 408040, 494900, 499849, 510050, 571256, 714070, 816080, 989800, 999698, 1020100, 1142512, 1428140, 1785175, 1979600, 1999396, 2040200, 2499245, 2856280, 3570350, 3998792, 4080400, 4998490, 5712560, 7140700, 7997584, 9996980, 12496225, 14281400, 19993960, 24992450, 28562800, 39987920, 49984900, 99969800, 199939600]

約数ペア:

[(1, 199939600), (2, 99969800), (4, 49984900), (5, 39987920), (7, 28562800), (8, 24992450), (10, 19993960), (14, 14281400), (16, 12496225), (20, 9996980), (25, 7997584), (28, 7140700), (35, 5712560), (40, 4998490), (49, 4080400), (50, 3998792), (56, 3570350), (70, 2856280), (80, 2499245), (98, 2040200), (100, 1999396), (101, 1979600), (112, 1785175), (140, 1428140), (175, 1142512), (196, 1020100), (200, 999698), (202, 989800), (245, 816080), (280, 714070), (350, 571256), (392, 510050), (400, 499849), (404, 494900), (490, 408040), (505, 395920), (560, 357035), (700, 285628), (707, 282800), (784, 255025), (808, 247450), (980, 204020), (1010, 197960), (1225, 163216), (1400, 142814), (1414, 141400), (1616, 123725), (1960, 102010), (2020, 98980), (2450, 81608), (2525, 79184), (2800, 71407), (2828, 70700), (3535, 56560), (3920, 51005), (4040, 49490), (4900, 40804), (4949, 40400), (5050, 39592), (5656, 35350), (7070, 28280), (8080, 24745), (9800, 20402), (9898, 20200), (10100, 19796), (10201, 19600), (11312, 17675)]