408346880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 1038417408

約数和(自身を除く): 630070528

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, 256, 310, 320, 328, 410, 496, 502, 620, 640, 656, 820, 992, 1004, 1240, 1255, 1271, 1280, 1312, 1640, 1984, 2008, 2480, 2510, 2542, 2624, 3280, 3968, 4016, 4960, 5020, 5084, 5248, 6355, 6560, 7781, 7936, 8032, 9920, 10040, 10168, 10291, 10496, 12710, 13120, 15562, 16064, 19840, 20080, 20336, 20582, 25420, 26240, 31124, 32128, 38905, 39680, 40160, 40672, 41164, 50840, 51455, 52480, 62248, 64256, 77810, 80320, 81344, 82328, 101680, 102910, 124496, 155620, 160640, 162688, 164656, 203360, 205820, 248992, 311240, 319021, 321280, 325376, 329312, 406720, 411640, 497984, 622480, 638042, 658624, 813440, 823280, 995968, 1244960, 1276084, 1317248, 1595105, 1626880, 1646560, 1991936, 2489920, 2552168, 2634496, 3190210, 3293120, 4979840, 5104336, 6380420, 6586240, 9959680, 10208672, 12760840, 13172480, 20417344, 25521680, 40834688, 51043360, 81669376, 102086720, 204173440, 408346880]

約数ペア:

[(1, 408346880), (2, 204173440), (4, 102086720), (5, 81669376), (8, 51043360), (10, 40834688), (16, 25521680), (20, 20417344), (31, 13172480), (32, 12760840), (40, 10208672), (41, 9959680), (62, 6586240), (64, 6380420), (80, 5104336), (82, 4979840), (124, 3293120), (128, 3190210), (155, 2634496), (160, 2552168), (164, 2489920), (205, 1991936), (248, 1646560), (251, 1626880), (256, 1595105), (310, 1317248), (320, 1276084), (328, 1244960), (410, 995968), (496, 823280), (502, 813440), (620, 658624), (640, 638042), (656, 622480), (820, 497984), (992, 411640), (1004, 406720), (1240, 329312), (1255, 325376), (1271, 321280), (1280, 319021), (1312, 311240), (1640, 248992), (1984, 205820), (2008, 203360), (2480, 164656), (2510, 162688), (2542, 160640), (2624, 155620), (3280, 124496), (3968, 102910), (4016, 101680), (4960, 82328), (5020, 81344), (5084, 80320), (5248, 77810), (6355, 64256), (6560, 62248), (7781, 52480), (7936, 51455), (8032, 50840), (9920, 41164), (10040, 40672), (10168, 40160), (10291, 39680), (10496, 38905), (12710, 32128), (13120, 31124), (15562, 26240), (16064, 25420), (19840, 20582), (20080, 20336)]