218485760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:471

約数の個数: 88

約数和(自身を含む): 529599840

約数和(自身を除く): 311114080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 307, 320, 512, 556, 614, 640, 695, 1024, 1112, 1228, 1280, 1390, 1535, 2224, 2456, 2560, 2780, 3070, 4448, 4912, 5120, 5560, 6140, 8896, 9824, 11120, 12280, 17792, 19648, 22240, 24560, 35584, 39296, 42673, 44480, 49120, 71168, 78592, 85346, 88960, 98240, 142336, 157184, 170692, 177920, 196480, 213365, 314368, 341384, 355840, 392960, 426730, 682768, 711680, 785920, 853460, 1365536, 1571840, 1706920, 2731072, 3413840, 5462144, 6827680, 10924288, 13655360, 21848576, 27310720, 43697152, 54621440, 109242880, 218485760]

約数ペア:

[(1, 218485760), (2, 109242880), (4, 54621440), (5, 43697152), (8, 27310720), (10, 21848576), (16, 13655360), (20, 10924288), (32, 6827680), (40, 5462144), (64, 3413840), (80, 2731072), (128, 1706920), (139, 1571840), (160, 1365536), (256, 853460), (278, 785920), (307, 711680), (320, 682768), (512, 426730), (556, 392960), (614, 355840), (640, 341384), (695, 314368), (1024, 213365), (1112, 196480), (1228, 177920), (1280, 170692), (1390, 157184), (1535, 142336), (2224, 98240), (2456, 88960), (2560, 85346), (2780, 78592), (3070, 71168), (4448, 49120), (4912, 44480), (5120, 42673), (5560, 39296), (6140, 35584), (8896, 24560), (9824, 22240), (11120, 19648), (12280, 17792)]