255360384

素因数分解:

$2^7\times 3^3\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2057

約数の個数: 128

約数和(自身を含む): 774424800

約数和(自身を除く): 519064416

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, 1997, 1998, 2368, 2664, 3456, 3552, 3994, 3996, 4736, 5328, 5991, 7104, 7988, 7992, 10656, 11982, 14208, 15976, 15984, 17973, 21312, 23964, 31952, 31968, 35946, 42624, 47928, 53919, 63904, 63936, 71892, 73889, 95856, 107838, 127808, 127872, 143784, 147778, 191712, 215676, 221667, 255616, 287568, 295556, 383424, 431352, 443334, 575136, 591112, 665001, 766848, 862704, 886668, 1150272, 1182224, 1330002, 1725408, 1773336, 1995003, 2300544, 2364448, 2660004, 3450816, 3546672, 3990006, 4728896, 5320008, 6901632, 7093344, 7980012, 9457792, 10640016, 14186688, 15960024, 21280032, 28373376, 31920048, 42560064, 63840096, 85120128, 127680192, 255360384]

約数ペア:

[(1, 255360384), (2, 127680192), (3, 85120128), (4, 63840096), (6, 42560064), (8, 31920048), (9, 28373376), (12, 21280032), (16, 15960024), (18, 14186688), (24, 10640016), (27, 9457792), (32, 7980012), (36, 7093344), (37, 6901632), (48, 5320008), (54, 4728896), (64, 3990006), (72, 3546672), (74, 3450816), (96, 2660004), (108, 2364448), (111, 2300544), (128, 1995003), (144, 1773336), (148, 1725408), (192, 1330002), (216, 1182224), (222, 1150272), (288, 886668), (296, 862704), (333, 766848), (384, 665001), (432, 591112), (444, 575136), (576, 443334), (592, 431352), (666, 383424), (864, 295556), (888, 287568), (999, 255616), (1152, 221667), (1184, 215676), (1332, 191712), (1728, 147778), (1776, 143784), (1997, 127872), (1998, 127808), (2368, 107838), (2664, 95856), (3456, 73889), (3552, 71892), (3994, 63936), (3996, 63904), (4736, 53919), (5328, 47928), (5991, 42624), (7104, 35946), (7988, 31968), (7992, 31952), (10656, 23964), (11982, 21312), (14208, 17973), (15976, 15984)]