20266588

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 18763172

約数列:

[1, 2, 4, 23, 43, 46, 47, 86, 92, 94, 109, 172, 188, 218, 436, 989, 1081, 1978, 2021, 2162, 2507, 3956, 4042, 4324, 4687, 5014, 5123, 8084, 9374, 10028, 10246, 18748, 20492, 46483, 92966, 107801, 117829, 185932, 215602, 220289, 235658, 431204, 440578, 471316, 881156, 5066647, 10133294, 20266588]

約数ペア:

[(1, 20266588), (2, 10133294), (4, 5066647), (23, 881156), (43, 471316), (46, 440578), (47, 431204), (86, 235658), (92, 220289), (94, 215602), (109, 185932), (172, 117829), (188, 107801), (218, 92966), (436, 46483), (989, 20492), (1081, 18748), (1978, 10246), (2021, 10028), (2162, 9374), (2507, 8084), (3956, 5123), (4042, 5014), (4324, 4687)]