20184480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 144

約数和(自身を含む): 70053984

約数和(自身を除く): 49869504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 107, 120, 131, 144, 160, 180, 214, 240, 262, 288, 321, 360, 393, 428, 480, 524, 535, 642, 655, 720, 786, 856, 963, 1048, 1070, 1179, 1284, 1310, 1440, 1572, 1605, 1712, 1926, 1965, 2096, 2140, 2358, 2568, 2620, 3144, 3210, 3424, 3852, 3930, 4192, 4280, 4716, 4815, 5136, 5240, 5895, 6288, 6420, 7704, 7860, 8560, 9432, 9630, 10272, 10480, 11790, 12576, 12840, 14017, 15408, 15720, 17120, 18864, 19260, 20960, 23580, 25680, 28034, 30816, 31440, 37728, 38520, 42051, 47160, 51360, 56068, 62880, 70085, 77040, 84102, 94320, 112136, 126153, 140170, 154080, 168204, 188640, 210255, 224272, 252306, 280340, 336408, 420510, 448544, 504612, 560680, 630765, 672816, 841020, 1009224, 1121360, 1261530, 1345632, 1682040, 2018448, 2242720, 2523060, 3364080, 4036896, 5046120, 6728160, 10092240, 20184480]

約数ペア:

[(1, 20184480), (2, 10092240), (3, 6728160), (4, 5046120), (5, 4036896), (6, 3364080), (8, 2523060), (9, 2242720), (10, 2018448), (12, 1682040), (15, 1345632), (16, 1261530), (18, 1121360), (20, 1009224), (24, 841020), (30, 672816), (32, 630765), (36, 560680), (40, 504612), (45, 448544), (48, 420510), (60, 336408), (72, 280340), (80, 252306), (90, 224272), (96, 210255), (107, 188640), (120, 168204), (131, 154080), (144, 140170), (160, 126153), (180, 112136), (214, 94320), (240, 84102), (262, 77040), (288, 70085), (321, 62880), (360, 56068), (393, 51360), (428, 47160), (480, 42051), (524, 38520), (535, 37728), (642, 31440), (655, 30816), (720, 28034), (786, 25680), (856, 23580), (963, 20960), (1048, 19260), (1070, 18864), (1179, 17120), (1284, 15720), (1310, 15408), (1440, 14017), (1572, 12840), (1605, 12576), (1712, 11790), (1926, 10480), (1965, 10272), (2096, 9630), (2140, 9432), (2358, 8560), (2568, 7860), (2620, 7704), (3144, 6420), (3210, 6288), (3424, 5895), (3852, 5240), (3930, 5136), (4192, 4815), (4280, 4716)]