12212540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 27095040

約数和(自身を除く): 14882500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 191, 230, 278, 382, 460, 556, 695, 764, 955, 1390, 1910, 2780, 3197, 3820, 4393, 6394, 8786, 12788, 15985, 17572, 21965, 26549, 31970, 43930, 53098, 63940, 87860, 106196, 132745, 265490, 530980, 610627, 1221254, 2442508, 3053135, 6106270, 12212540]

約数ペア:

[(1, 12212540), (2, 6106270), (4, 3053135), (5, 2442508), (10, 1221254), (20, 610627), (23, 530980), (46, 265490), (92, 132745), (115, 106196), (139, 87860), (191, 63940), (230, 53098), (278, 43930), (382, 31970), (460, 26549), (556, 21965), (695, 17572), (764, 15985), (955, 12788), (1390, 8786), (1910, 6394), (2780, 4393), (3197, 3820)]