9911320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7993}}^1$

素因数の和:8035

約数の個数: 32

約数和(自身を含む): 23022720

約数和(自身を除く): 13111400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 7993, 15986, 31972, 39965, 63944, 79930, 159860, 247783, 319720, 495566, 991132, 1238915, 1982264, 2477830, 4955660, 9911320]

約数ペア:

[(1, 9911320), (2, 4955660), (4, 2477830), (5, 1982264), (8, 1238915), (10, 991132), (20, 495566), (31, 319720), (40, 247783), (62, 159860), (124, 79930), (155, 63944), (248, 39965), (310, 31972), (620, 15986), (1240, 7993)]