25958780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 56851200

約数和(自身を除く): 30892420

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 281, 298, 310, 562, 596, 620, 745, 1124, 1405, 1490, 2810, 2980, 4619, 5620, 8711, 9238, 17422, 18476, 23095, 34844, 41869, 43555, 46190, 83738, 87110, 92380, 167476, 174220, 209345, 418690, 837380, 1297939, 2595878, 5191756, 6489695, 12979390, 25958780]

約数ペア:

[(1, 25958780), (2, 12979390), (4, 6489695), (5, 5191756), (10, 2595878), (20, 1297939), (31, 837380), (62, 418690), (124, 209345), (149, 174220), (155, 167476), (281, 92380), (298, 87110), (310, 83738), (562, 46190), (596, 43555), (620, 41869), (745, 34844), (1124, 23095), (1405, 18476), (1490, 17422), (2810, 9238), (2980, 8711), (4619, 5620)]