20785440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3331}}^1$

素因数の和:3362

約数の個数: 96

約数和(自身を含む): 70531776

約数和(自身を除く): 49746336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3331, 6240, 6662, 9993, 13324, 16655, 19986, 26648, 33310, 39972, 43303, 49965, 53296, 66620, 79944, 86606, 99930, 106592, 129909, 133240, 159888, 173212, 199860, 216515, 259818, 266480, 319776, 346424, 399720, 433030, 519636, 532960, 649545, 692848, 799440, 866060, 1039272, 1299090, 1385696, 1598880, 1732120, 2078544, 2598180, 3464240, 4157088, 5196360, 6928480, 10392720, 20785440]

約数ペア:

[(1, 20785440), (2, 10392720), (3, 6928480), (4, 5196360), (5, 4157088), (6, 3464240), (8, 2598180), (10, 2078544), (12, 1732120), (13, 1598880), (15, 1385696), (16, 1299090), (20, 1039272), (24, 866060), (26, 799440), (30, 692848), (32, 649545), (39, 532960), (40, 519636), (48, 433030), (52, 399720), (60, 346424), (65, 319776), (78, 266480), (80, 259818), (96, 216515), (104, 199860), (120, 173212), (130, 159888), (156, 133240), (160, 129909), (195, 106592), (208, 99930), (240, 86606), (260, 79944), (312, 66620), (390, 53296), (416, 49965), (480, 43303), (520, 39972), (624, 33310), (780, 26648), (1040, 19986), (1248, 16655), (1560, 13324), (2080, 9993), (3120, 6662), (3331, 6240)]