201491320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{162493}}^1$

素因数の和:162535

約数の個数: 32

約数和(自身を含む): 467982720

約数和(自身を除く): 266491400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 162493, 324986, 649972, 812465, 1299944, 1624930, 3249860, 5037283, 6499720, 10074566, 20149132, 25186415, 40298264, 50372830, 100745660, 201491320]

約数ペア:

[(1, 201491320), (2, 100745660), (4, 50372830), (5, 40298264), (8, 25186415), (10, 20149132), (20, 10074566), (31, 6499720), (40, 5037283), (62, 3249860), (124, 1624930), (155, 1299944), (248, 812465), (310, 649972), (620, 324986), (1240, 162493)]