30801940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{701}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 70171920

約数和(自身を除く): 39369980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 701, 845, 1402, 1690, 2197, 2804, 3380, 3505, 4394, 7010, 8788, 9113, 10985, 14020, 18226, 21970, 36452, 43940, 45565, 91130, 118469, 182260, 236938, 473876, 592345, 1184690, 1540097, 2369380, 3080194, 6160388, 7700485, 15400970, 30801940]

約数ペア:

[(1, 30801940), (2, 15400970), (4, 7700485), (5, 6160388), (10, 3080194), (13, 2369380), (20, 1540097), (26, 1184690), (52, 592345), (65, 473876), (130, 236938), (169, 182260), (260, 118469), (338, 91130), (676, 45565), (701, 43940), (845, 36452), (1402, 21970), (1690, 18226), (2197, 14020), (2804, 10985), (3380, 9113), (3505, 8788), (4394, 7010)]