19014920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7793}}^1$

素因数の和:7865

約数の個数: 32

約数和(自身を含む): 43490520

約数和(自身を除く): 24475600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7793, 15586, 31172, 38965, 62344, 77930, 155860, 311720, 475373, 950746, 1901492, 2376865, 3802984, 4753730, 9507460, 19014920]

約数ペア:

[(1, 19014920), (2, 9507460), (4, 4753730), (5, 3802984), (8, 2376865), (10, 1901492), (20, 950746), (40, 475373), (61, 311720), (122, 155860), (244, 77930), (305, 62344), (488, 38965), (610, 31172), (1220, 15586), (2440, 7793)]