28628990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1153}}^1$

素因数の和:1364

約数の個数: 32

約数和(自身を含む): 55835136

約数和(自身を除く): 27206146

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 191, 382, 955, 1153, 1910, 2306, 2483, 4966, 5765, 11530, 12415, 14989, 24830, 29978, 74945, 149890, 220223, 440446, 1101115, 2202230, 2862899, 5725798, 14314495, 28628990]

約数ペア:

[(1, 28628990), (2, 14314495), (5, 5725798), (10, 2862899), (13, 2202230), (26, 1101115), (65, 440446), (130, 220223), (191, 149890), (382, 74945), (955, 29978), (1153, 24830), (1910, 14989), (2306, 12415), (2483, 11530), (4966, 5765)]