19634840

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3583}}^1$

素因数の和:3731

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 24878440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3583, 5480, 7166, 14332, 17915, 28664, 35830, 71660, 143320, 490871, 981742, 1963484, 2454355, 3926968, 4908710, 9817420, 19634840]

約数ペア:

[(1, 19634840), (2, 9817420), (4, 4908710), (5, 3926968), (8, 2454355), (10, 1963484), (20, 981742), (40, 490871), (137, 143320), (274, 71660), (548, 35830), (685, 28664), (1096, 17915), (1370, 14332), (2740, 7166), (3583, 5480)]