19822640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7993}}^1$

素因数の和:8037

約数の個数: 40

約数和(自身を含む): 47580288

約数和(自身を除く): 27757648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7993, 15986, 31972, 39965, 63944, 79930, 127888, 159860, 247783, 319720, 495566, 639440, 991132, 1238915, 1982264, 2477830, 3964528, 4955660, 9911320, 19822640]

約数ペア:

[(1, 19822640), (2, 9911320), (4, 4955660), (5, 3964528), (8, 2477830), (10, 1982264), (16, 1238915), (20, 991132), (31, 639440), (40, 495566), (62, 319720), (80, 247783), (124, 159860), (155, 127888), (248, 79930), (310, 63944), (496, 39965), (620, 31972), (1240, 15986), (2480, 7993)]