281137920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{10459}}^1$

素因数の和:10490

約数の個数: 144

約数和(自身を含む): 1026251520

約数和(自身を除く): 745113600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 10459, 13440, 20918, 26880, 31377, 41836, 52295, 62754, 73213, 83672, 104590, 125508, 146426, 156885, 167344, 209180, 219639, 251016, 292852, 313770, 334688, 366065, 418360, 439278, 502032, 585704, 627540, 669376, 732130, 836720, 878556, 1004064, 1098195, 1171408, 1255080, 1338752, 1464260, 1673440, 1757112, 2008128, 2196390, 2342816, 2510160, 2677504, 2928520, 3346880, 3514224, 4016256, 4392780, 4685632, 5020320, 5857040, 6693760, 7028448, 8032512, 8785560, 9371264, 10040640, 11714080, 13387520, 14056896, 17571120, 18742528, 20081280, 23428160, 28113792, 35142240, 40162560, 46856320, 56227584, 70284480, 93712640, 140568960, 281137920]

約数ペア:

[(1, 281137920), (2, 140568960), (3, 93712640), (4, 70284480), (5, 56227584), (6, 46856320), (7, 40162560), (8, 35142240), (10, 28113792), (12, 23428160), (14, 20081280), (15, 18742528), (16, 17571120), (20, 14056896), (21, 13387520), (24, 11714080), (28, 10040640), (30, 9371264), (32, 8785560), (35, 8032512), (40, 7028448), (42, 6693760), (48, 5857040), (56, 5020320), (60, 4685632), (64, 4392780), (70, 4016256), (80, 3514224), (84, 3346880), (96, 2928520), (105, 2677504), (112, 2510160), (120, 2342816), (128, 2196390), (140, 2008128), (160, 1757112), (168, 1673440), (192, 1464260), (210, 1338752), (224, 1255080), (240, 1171408), (256, 1098195), (280, 1004064), (320, 878556), (336, 836720), (384, 732130), (420, 669376), (448, 627540), (480, 585704), (560, 502032), (640, 439278), (672, 418360), (768, 366065), (840, 334688), (896, 313770), (960, 292852), (1120, 251016), (1280, 219639), (1344, 209180), (1680, 167344), (1792, 156885), (1920, 146426), (2240, 125508), (2688, 104590), (3360, 83672), (3840, 73213), (4480, 62754), (5376, 52295), (6720, 41836), (8960, 31377), (10459, 26880), (13440, 20918)]