255616128

素因数分解:

$2^7\times 3^3\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2059

約数の個数: 128

約数和(自身を含む): 775200000

約数和(自身を除く): 519583872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 96, 108, 111, 128, 144, 148, 192, 216, 222, 288, 296, 333, 384, 432, 444, 576, 592, 666, 864, 888, 999, 1152, 1184, 1332, 1728, 1776, 1998, 1999, 2368, 2664, 3456, 3552, 3996, 3998, 4736, 5328, 5997, 7104, 7992, 7996, 10656, 11994, 14208, 15984, 15992, 17991, 21312, 23988, 31968, 31984, 35982, 42624, 47976, 53973, 63936, 63968, 71964, 73963, 95952, 107946, 127872, 127936, 143928, 147926, 191904, 215892, 221889, 255872, 287856, 295852, 383808, 431784, 443778, 575712, 591704, 665667, 767616, 863568, 887556, 1151424, 1183408, 1331334, 1727136, 1775112, 1997001, 2302848, 2366816, 2662668, 3454272, 3550224, 3994002, 4733632, 5325336, 6908544, 7100448, 7988004, 9467264, 10650672, 14200896, 15976008, 21301344, 28401792, 31952016, 42602688, 63904032, 85205376, 127808064, 255616128]

約数ペア:

[(1, 255616128), (2, 127808064), (3, 85205376), (4, 63904032), (6, 42602688), (8, 31952016), (9, 28401792), (12, 21301344), (16, 15976008), (18, 14200896), (24, 10650672), (27, 9467264), (32, 7988004), (36, 7100448), (37, 6908544), (48, 5325336), (54, 4733632), (64, 3994002), (72, 3550224), (74, 3454272), (96, 2662668), (108, 2366816), (111, 2302848), (128, 1997001), (144, 1775112), (148, 1727136), (192, 1331334), (216, 1183408), (222, 1151424), (288, 887556), (296, 863568), (333, 767616), (384, 665667), (432, 591704), (444, 575712), (576, 443778), (592, 431784), (666, 383808), (864, 295852), (888, 287856), (999, 255872), (1152, 221889), (1184, 215892), (1332, 191904), (1728, 147926), (1776, 143928), (1998, 127936), (1999, 127872), (2368, 107946), (2664, 95952), (3456, 73963), (3552, 71964), (3996, 63968), (3998, 63936), (4736, 53973), (5328, 47976), (5997, 42624), (7104, 35982), (7992, 31984), (7996, 31968), (10656, 23988), (11994, 21312), (14208, 17991), (15984, 15992)]