19078840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 47329920

約数和(自身を除く): 28251080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 331, 440, 524, 655, 662, 1048, 1310, 1324, 1441, 1655, 2620, 2648, 2882, 3310, 3641, 5240, 5764, 6620, 7205, 7282, 11528, 13240, 14410, 14564, 18205, 28820, 29128, 36410, 43361, 57640, 72820, 86722, 145640, 173444, 216805, 346888, 433610, 476971, 867220, 953942, 1734440, 1907884, 2384855, 3815768, 4769710, 9539420, 19078840]

約数ペア:

[(1, 19078840), (2, 9539420), (4, 4769710), (5, 3815768), (8, 2384855), (10, 1907884), (11, 1734440), (20, 953942), (22, 867220), (40, 476971), (44, 433610), (55, 346888), (88, 216805), (110, 173444), (131, 145640), (220, 86722), (262, 72820), (331, 57640), (440, 43361), (524, 36410), (655, 29128), (662, 28820), (1048, 18205), (1310, 14564), (1324, 14410), (1441, 13240), (1655, 11528), (2620, 7282), (2648, 7205), (2882, 6620), (3310, 5764), (3641, 5240)]