203280640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 518031360

約数和(自身を除く): 314750720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 109, 124, 128, 155, 160, 188, 218, 235, 248, 256, 310, 320, 376, 436, 470, 496, 545, 620, 640, 752, 872, 940, 992, 1090, 1240, 1280, 1457, 1504, 1744, 1880, 1984, 2180, 2480, 2914, 3008, 3379, 3488, 3760, 3968, 4360, 4960, 5123, 5828, 6016, 6758, 6976, 7285, 7520, 7936, 8720, 9920, 10246, 11656, 12032, 13516, 13952, 14570, 15040, 16895, 17440, 19840, 20492, 23312, 25615, 27032, 27904, 29140, 30080, 33790, 34880, 39680, 40984, 46624, 51230, 54064, 58280, 60160, 67580, 69760, 81968, 93248, 102460, 108128, 116560, 135160, 139520, 158813, 163936, 186496, 204920, 216256, 233120, 270320, 317626, 327872, 372992, 409840, 432512, 466240, 540640, 635252, 655744, 794065, 819680, 865024, 932480, 1081280, 1270504, 1311488, 1588130, 1639360, 1864960, 2162560, 2541008, 3176260, 3278720, 4325120, 5082016, 6352520, 6557440, 10164032, 12705040, 20328064, 25410080, 40656128, 50820160, 101640320, 203280640]

約数ペア:

[(1, 203280640), (2, 101640320), (4, 50820160), (5, 40656128), (8, 25410080), (10, 20328064), (16, 12705040), (20, 10164032), (31, 6557440), (32, 6352520), (40, 5082016), (47, 4325120), (62, 3278720), (64, 3176260), (80, 2541008), (94, 2162560), (109, 1864960), (124, 1639360), (128, 1588130), (155, 1311488), (160, 1270504), (188, 1081280), (218, 932480), (235, 865024), (248, 819680), (256, 794065), (310, 655744), (320, 635252), (376, 540640), (436, 466240), (470, 432512), (496, 409840), (545, 372992), (620, 327872), (640, 317626), (752, 270320), (872, 233120), (940, 216256), (992, 204920), (1090, 186496), (1240, 163936), (1280, 158813), (1457, 139520), (1504, 135160), (1744, 116560), (1880, 108128), (1984, 102460), (2180, 93248), (2480, 81968), (2914, 69760), (3008, 67580), (3379, 60160), (3488, 58280), (3760, 54064), (3968, 51230), (4360, 46624), (4960, 40984), (5123, 39680), (5828, 34880), (6016, 33790), (6758, 30080), (6976, 29140), (7285, 27904), (7520, 27032), (7936, 25615), (8720, 23312), (9920, 20492), (10246, 19840), (11656, 17440), (12032, 16895), (13516, 15040), (13952, 14570)]