61991320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49993}}^1$

素因数の和:50035

約数の個数: 32

約数和(自身を含む): 143982720

約数和(自身を除く): 81991400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 49993, 99986, 199972, 249965, 399944, 499930, 999860, 1549783, 1999720, 3099566, 6199132, 7748915, 12398264, 15497830, 30995660, 61991320]

約数ペア:

[(1, 61991320), (2, 30995660), (4, 15497830), (5, 12398264), (8, 7748915), (10, 6199132), (20, 3099566), (31, 1999720), (40, 1549783), (62, 999860), (124, 499930), (155, 399944), (248, 249965), (310, 199972), (620, 99986), (1240, 49993)]