204173440

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 128

約数和(自身を含む): 518192640

約数和(自身を除く): 314019200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 251, 310, 320, 328, 410, 496, 502, 620, 640, 656, 820, 992, 1004, 1240, 1255, 1271, 1312, 1640, 1984, 2008, 2480, 2510, 2542, 2624, 3280, 3968, 4016, 4960, 5020, 5084, 5248, 6355, 6560, 7781, 8032, 9920, 10040, 10168, 10291, 12710, 13120, 15562, 16064, 19840, 20080, 20336, 20582, 25420, 26240, 31124, 32128, 38905, 40160, 40672, 41164, 50840, 51455, 62248, 77810, 80320, 81344, 82328, 101680, 102910, 124496, 155620, 160640, 162688, 164656, 203360, 205820, 248992, 311240, 319021, 329312, 406720, 411640, 497984, 622480, 638042, 658624, 813440, 823280, 995968, 1244960, 1276084, 1317248, 1595105, 1646560, 2489920, 2552168, 3190210, 3293120, 4979840, 5104336, 6380420, 6586240, 10208672, 12760840, 20417344, 25521680, 40834688, 51043360, 102086720, 204173440]

約数ペア:

[(1, 204173440), (2, 102086720), (4, 51043360), (5, 40834688), (8, 25521680), (10, 20417344), (16, 12760840), (20, 10208672), (31, 6586240), (32, 6380420), (40, 5104336), (41, 4979840), (62, 3293120), (64, 3190210), (80, 2552168), (82, 2489920), (124, 1646560), (128, 1595105), (155, 1317248), (160, 1276084), (164, 1244960), (205, 995968), (248, 823280), (251, 813440), (310, 658624), (320, 638042), (328, 622480), (410, 497984), (496, 411640), (502, 406720), (620, 329312), (640, 319021), (656, 311240), (820, 248992), (992, 205820), (1004, 203360), (1240, 164656), (1255, 162688), (1271, 160640), (1312, 155620), (1640, 124496), (1984, 102910), (2008, 101680), (2480, 82328), (2510, 81344), (2542, 80320), (2624, 77810), (3280, 62248), (3968, 51455), (4016, 50840), (4960, 41164), (5020, 40672), (5084, 40160), (5248, 38905), (6355, 32128), (6560, 31124), (7781, 26240), (8032, 25420), (9920, 20582), (10040, 20336), (10168, 20080), (10291, 19840), (12710, 16064), (13120, 15562)]