21960904920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2577571}}^1$

素因数の和:2577656

約数の個数: 64

約数和(自身を含む): 66810666240

約数和(自身を除く): 44849761320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 2577571, 5155142, 7732713, 10310284, 12887855, 15465426, 20620568, 25775710, 30930852, 38663565, 51551420, 61861704, 77327130, 103102840, 154654260, 183007541, 309308520, 366015082, 549022623, 732030164, 915037705, 1098045246, 1464060328, 1830075410, 2196090492, 2745113115, 3660150820, 4392180984, 5490226230, 7320301640, 10980452460, 21960904920]

約数ペア:

[(1, 21960904920), (2, 10980452460), (3, 7320301640), (4, 5490226230), (5, 4392180984), (6, 3660150820), (8, 2745113115), (10, 2196090492), (12, 1830075410), (15, 1464060328), (20, 1098045246), (24, 915037705), (30, 732030164), (40, 549022623), (60, 366015082), (71, 309308520), (120, 183007541), (142, 154654260), (213, 103102840), (284, 77327130), (355, 61861704), (426, 51551420), (568, 38663565), (710, 30930852), (852, 25775710), (1065, 20620568), (1420, 15465426), (1704, 12887855), (2130, 10310284), (2840, 7732713), (4260, 5155142), (8520, 2577571)]