164564420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1123}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 367089408

約数和(自身を除く): 202524988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 431, 862, 1123, 1724, 2155, 2246, 4310, 4492, 5615, 7327, 8620, 11230, 14654, 19091, 22460, 29308, 36635, 38182, 73270, 76364, 95455, 146540, 190910, 381820, 484013, 968026, 1936052, 2420065, 4840130, 8228221, 9680260, 16456442, 32912884, 41141105, 82282210, 164564420]

約数ペア:

[(1, 164564420), (2, 82282210), (4, 41141105), (5, 32912884), (10, 16456442), (17, 9680260), (20, 8228221), (34, 4840130), (68, 2420065), (85, 1936052), (170, 968026), (340, 484013), (431, 381820), (862, 190910), (1123, 146540), (1724, 95455), (2155, 76364), (2246, 73270), (4310, 38182), (4492, 36635), (5615, 29308), (7327, 22460), (8620, 19091), (11230, 14654)]