20380720

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{683}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 47581776

約数和(自身を除く): 27201056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 683, 746, 1366, 1492, 1865, 2732, 2984, 3415, 3730, 5464, 5968, 6830, 7460, 10928, 13660, 14920, 27320, 29840, 54640, 254759, 509518, 1019036, 1273795, 2038072, 2547590, 4076144, 5095180, 10190360, 20380720]

約数ペア:

[(1, 20380720), (2, 10190360), (4, 5095180), (5, 4076144), (8, 2547590), (10, 2038072), (16, 1273795), (20, 1019036), (40, 509518), (80, 254759), (373, 54640), (683, 29840), (746, 27320), (1366, 14920), (1492, 13660), (1865, 10928), (2732, 7460), (2984, 6830), (3415, 5968), (3730, 5464)]