31647460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121721}}^1$

素因数の和:121743

約数の個数: 24

約数和(自身を含む): 71572536

約数和(自身を除く): 39925076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121721, 243442, 486884, 608605, 1217210, 1582373, 2434420, 3164746, 6329492, 7911865, 15823730, 31647460]

約数ペア:

[(1, 31647460), (2, 15823730), (4, 7911865), (5, 6329492), (10, 3164746), (13, 2434420), (20, 1582373), (26, 1217210), (52, 608605), (65, 486884), (130, 243442), (260, 121721)]