19644840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:491

約数の個数: 96

約数和(自身を含む): 64401480

約数和(自身を除く): 44756640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 197, 277, 360, 394, 554, 591, 788, 831, 985, 1108, 1182, 1385, 1576, 1662, 1773, 1970, 2216, 2364, 2493, 2770, 2955, 3324, 3546, 3940, 4155, 4728, 4986, 5540, 5910, 6648, 7092, 7880, 8310, 8865, 9972, 11080, 11820, 12465, 14184, 16620, 17730, 19944, 23640, 24930, 33240, 35460, 49860, 54569, 70920, 99720, 109138, 163707, 218276, 272845, 327414, 436552, 491121, 545690, 654828, 818535, 982242, 1091380, 1309656, 1637070, 1964484, 2182760, 2455605, 3274140, 3928968, 4911210, 6548280, 9822420, 19644840]

約数ペア:

[(1, 19644840), (2, 9822420), (3, 6548280), (4, 4911210), (5, 3928968), (6, 3274140), (8, 2455605), (9, 2182760), (10, 1964484), (12, 1637070), (15, 1309656), (18, 1091380), (20, 982242), (24, 818535), (30, 654828), (36, 545690), (40, 491121), (45, 436552), (60, 327414), (72, 272845), (90, 218276), (120, 163707), (180, 109138), (197, 99720), (277, 70920), (360, 54569), (394, 49860), (554, 35460), (591, 33240), (788, 24930), (831, 23640), (985, 19944), (1108, 17730), (1182, 16620), (1385, 14184), (1576, 12465), (1662, 11820), (1773, 11080), (1970, 9972), (2216, 8865), (2364, 8310), (2493, 7880), (2770, 7092), (2955, 6648), (3324, 5910), (3546, 5540), (3940, 4986), (4155, 4728)]