209562880

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1621}}^1$

素因数の和:1743

約数の個数: 72

約数和(自身を含む): 507251304

約数和(自身を除く): 297688424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 640, 808, 1010, 1280, 1616, 1621, 2020, 3232, 3242, 4040, 6464, 6484, 8080, 8105, 12928, 12968, 16160, 16210, 25856, 25936, 32320, 32420, 51872, 64640, 64840, 103744, 129280, 129680, 163721, 207488, 259360, 327442, 414976, 518720, 654884, 818605, 1037440, 1309768, 1637210, 2074880, 2619536, 3274420, 5239072, 6548840, 10478144, 13097680, 20956288, 26195360, 41912576, 52390720, 104781440, 209562880]

約数ペア:

[(1, 209562880), (2, 104781440), (4, 52390720), (5, 41912576), (8, 26195360), (10, 20956288), (16, 13097680), (20, 10478144), (32, 6548840), (40, 5239072), (64, 3274420), (80, 2619536), (101, 2074880), (128, 1637210), (160, 1309768), (202, 1037440), (256, 818605), (320, 654884), (404, 518720), (505, 414976), (640, 327442), (808, 259360), (1010, 207488), (1280, 163721), (1616, 129680), (1621, 129280), (2020, 103744), (3232, 64840), (3242, 64640), (4040, 51872), (6464, 32420), (6484, 32320), (8080, 25936), (8105, 25856), (12928, 16210), (12968, 16160)]