257748120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4447}}^1$

素因数の和:4494

約数の個数: 192

約数和(自身を含む): 999198720

約数和(自身を除く): 741450600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 115, 120, 126, 138, 140, 161, 168, 180, 184, 207, 210, 230, 252, 276, 280, 315, 322, 345, 360, 414, 420, 460, 483, 504, 552, 630, 644, 690, 805, 828, 840, 920, 966, 1035, 1260, 1288, 1380, 1449, 1610, 1656, 1932, 2070, 2415, 2520, 2760, 2898, 3220, 3864, 4140, 4447, 4830, 5796, 6440, 7245, 8280, 8894, 9660, 11592, 13341, 14490, 17788, 19320, 22235, 26682, 28980, 31129, 35576, 40023, 44470, 53364, 57960, 62258, 66705, 80046, 88940, 93387, 102281, 106728, 124516, 133410, 155645, 160092, 177880, 186774, 200115, 204562, 249032, 266820, 280161, 306843, 311290, 320184, 373548, 400230, 409124, 466935, 511405, 533640, 560322, 613686, 622580, 715967, 747096, 800460, 818248, 920529, 933870, 1022810, 1120644, 1227372, 1245160, 1400805, 1431934, 1534215, 1600920, 1841058, 1867740, 2045620, 2147901, 2241288, 2454744, 2801610, 2863868, 3068430, 3579835, 3682116, 3735480, 4091240, 4295802, 4602645, 5603220, 5727736, 6136860, 6443703, 7159670, 7364232, 8591604, 9205290, 10739505, 11206440, 12273720, 12887406, 14319340, 17183208, 18410580, 21479010, 25774812, 28638680, 32218515, 36821160, 42958020, 51549624, 64437030, 85916040, 128874060, 257748120]

約数ペア:

[(1, 257748120), (2, 128874060), (3, 85916040), (4, 64437030), (5, 51549624), (6, 42958020), (7, 36821160), (8, 32218515), (9, 28638680), (10, 25774812), (12, 21479010), (14, 18410580), (15, 17183208), (18, 14319340), (20, 12887406), (21, 12273720), (23, 11206440), (24, 10739505), (28, 9205290), (30, 8591604), (35, 7364232), (36, 7159670), (40, 6443703), (42, 6136860), (45, 5727736), (46, 5603220), (56, 4602645), (60, 4295802), (63, 4091240), (69, 3735480), (70, 3682116), (72, 3579835), (84, 3068430), (90, 2863868), (92, 2801610), (105, 2454744), (115, 2241288), (120, 2147901), (126, 2045620), (138, 1867740), (140, 1841058), (161, 1600920), (168, 1534215), (180, 1431934), (184, 1400805), (207, 1245160), (210, 1227372), (230, 1120644), (252, 1022810), (276, 933870), (280, 920529), (315, 818248), (322, 800460), (345, 747096), (360, 715967), (414, 622580), (420, 613686), (460, 560322), (483, 533640), (504, 511405), (552, 466935), (630, 409124), (644, 400230), (690, 373548), (805, 320184), (828, 311290), (840, 306843), (920, 280161), (966, 266820), (1035, 249032), (1260, 204562), (1288, 200115), (1380, 186774), (1449, 177880), (1610, 160092), (1656, 155645), (1932, 133410), (2070, 124516), (2415, 106728), (2520, 102281), (2760, 93387), (2898, 88940), (3220, 80046), (3864, 66705), (4140, 62258), (4447, 57960), (4830, 53364), (5796, 44470), (6440, 40023), (7245, 35576), (8280, 31129), (8894, 28980), (9660, 26682), (11592, 22235), (13341, 19320), (14490, 17788)]