281450240

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 717002496

約数和(自身を除く): 435552256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 173, 205, 248, 256, 310, 320, 328, 346, 410, 496, 620, 640, 656, 692, 820, 865, 992, 1240, 1271, 1280, 1312, 1384, 1640, 1730, 1984, 2480, 2542, 2624, 2768, 3280, 3460, 3968, 4960, 5084, 5248, 5363, 5536, 6355, 6560, 6920, 7093, 7936, 9920, 10168, 10496, 10726, 11072, 12710, 13120, 13840, 14186, 19840, 20336, 21452, 22144, 25420, 26240, 26815, 27680, 28372, 35465, 39680, 40672, 42904, 44288, 50840, 52480, 53630, 55360, 56744, 70930, 81344, 85808, 101680, 107260, 110720, 113488, 141860, 162688, 171616, 203360, 214520, 219883, 221440, 226976, 283720, 325376, 343232, 406720, 429040, 439766, 453952, 567440, 686464, 813440, 858080, 879532, 907904, 1099415, 1134880, 1372928, 1626880, 1716160, 1759064, 1815808, 2198830, 2269760, 3432320, 3518128, 4397660, 4539520, 6864640, 7036256, 8795320, 9079040, 14072512, 17590640, 28145024, 35181280, 56290048, 70362560, 140725120, 281450240]

約数ペア:

[(1, 281450240), (2, 140725120), (4, 70362560), (5, 56290048), (8, 35181280), (10, 28145024), (16, 17590640), (20, 14072512), (31, 9079040), (32, 8795320), (40, 7036256), (41, 6864640), (62, 4539520), (64, 4397660), (80, 3518128), (82, 3432320), (124, 2269760), (128, 2198830), (155, 1815808), (160, 1759064), (164, 1716160), (173, 1626880), (205, 1372928), (248, 1134880), (256, 1099415), (310, 907904), (320, 879532), (328, 858080), (346, 813440), (410, 686464), (496, 567440), (620, 453952), (640, 439766), (656, 429040), (692, 406720), (820, 343232), (865, 325376), (992, 283720), (1240, 226976), (1271, 221440), (1280, 219883), (1312, 214520), (1384, 203360), (1640, 171616), (1730, 162688), (1984, 141860), (2480, 113488), (2542, 110720), (2624, 107260), (2768, 101680), (3280, 85808), (3460, 81344), (3968, 70930), (4960, 56744), (5084, 55360), (5248, 53630), (5363, 52480), (5536, 50840), (6355, 44288), (6560, 42904), (6920, 40672), (7093, 39680), (7936, 35465), (9920, 28372), (10168, 27680), (10496, 26815), (10726, 26240), (11072, 25420), (12710, 22144), (13120, 21452), (13840, 20336), (14186, 19840)]