25514840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 62445600

約数和(自身を除く): 36930760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 353, 520, 556, 695, 706, 1112, 1390, 1412, 1765, 1807, 2780, 2824, 3530, 3614, 4589, 5560, 7060, 7228, 9035, 9178, 14120, 14456, 18070, 18356, 22945, 36140, 36712, 45890, 49067, 72280, 91780, 98134, 183560, 196268, 245335, 392536, 490670, 637871, 981340, 1275742, 1962680, 2551484, 3189355, 5102968, 6378710, 12757420, 25514840]

約数ペア:

[(1, 25514840), (2, 12757420), (4, 6378710), (5, 5102968), (8, 3189355), (10, 2551484), (13, 1962680), (20, 1275742), (26, 981340), (40, 637871), (52, 490670), (65, 392536), (104, 245335), (130, 196268), (139, 183560), (260, 98134), (278, 91780), (353, 72280), (520, 49067), (556, 45890), (695, 36712), (706, 36140), (1112, 22945), (1390, 18356), (1412, 18070), (1765, 14456), (1807, 14120), (2780, 9178), (2824, 9035), (3530, 7228), (3614, 7060), (4589, 5560)]