25647220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{313}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 57446928

約数和(自身を除く): 31799708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 241, 313, 340, 482, 626, 964, 1205, 1252, 1565, 2410, 3130, 4097, 4820, 5321, 6260, 8194, 10642, 16388, 20485, 21284, 26605, 40970, 53210, 75433, 81940, 106420, 150866, 301732, 377165, 754330, 1282361, 1508660, 2564722, 5129444, 6411805, 12823610, 25647220]

約数ペア:

[(1, 25647220), (2, 12823610), (4, 6411805), (5, 5129444), (10, 2564722), (17, 1508660), (20, 1282361), (34, 754330), (68, 377165), (85, 301732), (170, 150866), (241, 106420), (313, 81940), (340, 75433), (482, 53210), (626, 40970), (964, 26605), (1205, 21284), (1252, 20485), (1565, 16388), (2410, 10642), (3130, 8194), (4097, 6260), (4820, 5321)]