19533410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 40449024

約数和(自身を除く): 20915614

約数列:

[1, 2, 5, 10, 13, 26, 31, 37, 62, 65, 74, 130, 131, 155, 185, 262, 310, 370, 403, 481, 655, 806, 962, 1147, 1310, 1703, 2015, 2294, 2405, 3406, 4030, 4061, 4810, 4847, 5735, 8122, 8515, 9694, 11470, 14911, 17030, 20305, 24235, 29822, 40610, 48470, 52793, 63011, 74555, 105586, 126022, 149110, 150257, 263965, 300514, 315055, 527930, 630110, 751285, 1502570, 1953341, 3906682, 9766705, 19533410]

約数ペア:

[(1, 19533410), (2, 9766705), (5, 3906682), (10, 1953341), (13, 1502570), (26, 751285), (31, 630110), (37, 527930), (62, 315055), (65, 300514), (74, 263965), (130, 150257), (131, 149110), (155, 126022), (185, 105586), (262, 74555), (310, 63011), (370, 52793), (403, 48470), (481, 40610), (655, 29822), (806, 24235), (962, 20305), (1147, 17030), (1310, 14911), (1703, 11470), (2015, 9694), (2294, 8515), (2405, 8122), (3406, 5735), (4030, 4847), (4061, 4810)]