21838680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:370

約数の個数: 128

約数和(自身を含む): 74059200

約数和(自身を除く): 52220520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 73, 90, 108, 120, 135, 146, 180, 216, 219, 270, 277, 292, 360, 365, 438, 540, 554, 584, 657, 730, 831, 876, 1080, 1095, 1108, 1314, 1385, 1460, 1662, 1752, 1971, 2190, 2216, 2493, 2628, 2770, 2920, 3285, 3324, 3942, 4155, 4380, 4986, 5256, 5540, 6570, 6648, 7479, 7884, 8310, 8760, 9855, 9972, 11080, 12465, 13140, 14958, 15768, 16620, 19710, 19944, 20221, 24930, 26280, 29916, 33240, 37395, 39420, 40442, 49860, 59832, 60663, 74790, 78840, 80884, 99720, 101105, 121326, 149580, 161768, 181989, 202210, 242652, 299160, 303315, 363978, 404420, 485304, 545967, 606630, 727956, 808840, 909945, 1091934, 1213260, 1455912, 1819890, 2183868, 2426520, 2729835, 3639780, 4367736, 5459670, 7279560, 10919340, 21838680]

約数ペア:

[(1, 21838680), (2, 10919340), (3, 7279560), (4, 5459670), (5, 4367736), (6, 3639780), (8, 2729835), (9, 2426520), (10, 2183868), (12, 1819890), (15, 1455912), (18, 1213260), (20, 1091934), (24, 909945), (27, 808840), (30, 727956), (36, 606630), (40, 545967), (45, 485304), (54, 404420), (60, 363978), (72, 303315), (73, 299160), (90, 242652), (108, 202210), (120, 181989), (135, 161768), (146, 149580), (180, 121326), (216, 101105), (219, 99720), (270, 80884), (277, 78840), (292, 74790), (360, 60663), (365, 59832), (438, 49860), (540, 40442), (554, 39420), (584, 37395), (657, 33240), (730, 29916), (831, 26280), (876, 24930), (1080, 20221), (1095, 19944), (1108, 19710), (1314, 16620), (1385, 15768), (1460, 14958), (1662, 13140), (1752, 12465), (1971, 11080), (2190, 9972), (2216, 9855), (2493, 8760), (2628, 8310), (2770, 7884), (2920, 7479), (3285, 6648), (3324, 6570), (3942, 5540), (4155, 5256), (4380, 4986)]