20077920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 144

約数和(自身を含む): 69818112

約数和(自身を除く): 49740192

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, 73, 80, 90, 96, 120, 144, 146, 160, 180, 191, 219, 240, 288, 292, 360, 365, 382, 438, 480, 573, 584, 657, 720, 730, 764, 876, 955, 1095, 1146, 1168, 1314, 1440, 1460, 1528, 1719, 1752, 1910, 2190, 2292, 2336, 2628, 2865, 2920, 3056, 3285, 3438, 3504, 3820, 4380, 4584, 5256, 5730, 5840, 6112, 6570, 6876, 7008, 7640, 8595, 8760, 9168, 10512, 11460, 11680, 13140, 13752, 13943, 15280, 17190, 17520, 18336, 21024, 22920, 26280, 27504, 27886, 30560, 34380, 35040, 41829, 45840, 52560, 55008, 55772, 68760, 69715, 83658, 91680, 105120, 111544, 125487, 137520, 139430, 167316, 209145, 223088, 250974, 275040, 278860, 334632, 418290, 446176, 501948, 557720, 627435, 669264, 836580, 1003896, 1115440, 1254870, 1338528, 1673160, 2007792, 2230880, 2509740, 3346320, 4015584, 5019480, 6692640, 10038960, 20077920]

約数ペア:

[(1, 20077920), (2, 10038960), (3, 6692640), (4, 5019480), (5, 4015584), (6, 3346320), (8, 2509740), (9, 2230880), (10, 2007792), (12, 1673160), (15, 1338528), (16, 1254870), (18, 1115440), (20, 1003896), (24, 836580), (30, 669264), (32, 627435), (36, 557720), (40, 501948), (45, 446176), (48, 418290), (60, 334632), (72, 278860), (73, 275040), (80, 250974), (90, 223088), (96, 209145), (120, 167316), (144, 139430), (146, 137520), (160, 125487), (180, 111544), (191, 105120), (219, 91680), (240, 83658), (288, 69715), (292, 68760), (360, 55772), (365, 55008), (382, 52560), (438, 45840), (480, 41829), (573, 35040), (584, 34380), (657, 30560), (720, 27886), (730, 27504), (764, 26280), (876, 22920), (955, 21024), (1095, 18336), (1146, 17520), (1168, 17190), (1314, 15280), (1440, 13943), (1460, 13752), (1528, 13140), (1719, 11680), (1752, 11460), (1910, 10512), (2190, 9168), (2292, 8760), (2336, 8595), (2628, 7640), (2865, 7008), (2920, 6876), (3056, 6570), (3285, 6112), (3438, 5840), (3504, 5730), (3820, 5256), (4380, 4584)]