19550128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{487}}^1$

素因数の和:701

約数の個数: 40

約数和(自身を含む): 41087648

約数和(自身を除く): 21537520

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 193, 208, 386, 487, 772, 974, 1544, 1948, 2509, 3088, 3896, 5018, 6331, 7792, 10036, 12662, 20072, 25324, 40144, 50648, 93991, 101296, 187982, 375964, 751928, 1221883, 1503856, 2443766, 4887532, 9775064, 19550128]

約数ペア:

[(1, 19550128), (2, 9775064), (4, 4887532), (8, 2443766), (13, 1503856), (16, 1221883), (26, 751928), (52, 375964), (104, 187982), (193, 101296), (208, 93991), (386, 50648), (487, 40144), (772, 25324), (974, 20072), (1544, 12662), (1948, 10036), (2509, 7792), (3088, 6331), (3896, 5018)]