28945540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 65959488

約数和(自身を除く): 37013948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 683, 815, 1366, 1630, 2119, 2732, 3260, 3415, 4238, 6830, 8476, 8879, 10595, 13660, 17758, 21190, 35516, 42380, 44395, 88790, 111329, 177580, 222658, 445316, 556645, 1113290, 1447277, 2226580, 2894554, 5789108, 7236385, 14472770, 28945540]

約数ペア:

[(1, 28945540), (2, 14472770), (4, 7236385), (5, 5789108), (10, 2894554), (13, 2226580), (20, 1447277), (26, 1113290), (52, 556645), (65, 445316), (130, 222658), (163, 177580), (260, 111329), (326, 88790), (652, 44395), (683, 42380), (815, 35516), (1366, 21190), (1630, 17758), (2119, 13660), (2732, 10595), (3260, 8879), (3415, 8476), (4238, 6830)]