19215080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 46094400

約数和(自身を除く): 26879320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 190, 193, 262, 380, 386, 524, 655, 760, 772, 965, 1048, 1310, 1544, 1930, 2489, 2620, 3667, 3860, 4978, 5240, 7334, 7720, 9956, 12445, 14668, 18335, 19912, 24890, 25283, 29336, 36670, 49780, 50566, 73340, 99560, 101132, 126415, 146680, 202264, 252830, 480377, 505660, 960754, 1011320, 1921508, 2401885, 3843016, 4803770, 9607540, 19215080]

約数ペア:

[(1, 19215080), (2, 9607540), (4, 4803770), (5, 3843016), (8, 2401885), (10, 1921508), (19, 1011320), (20, 960754), (38, 505660), (40, 480377), (76, 252830), (95, 202264), (131, 146680), (152, 126415), (190, 101132), (193, 99560), (262, 73340), (380, 50566), (386, 49780), (524, 36670), (655, 29336), (760, 25283), (772, 24890), (965, 19912), (1048, 18335), (1310, 14668), (1544, 12445), (1930, 9956), (2489, 7720), (2620, 7334), (3667, 5240), (3860, 4978)]