27689840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18217}}^1$

素因数の和:18249

約数の個数: 40

約数和(自身を含む): 67770960

約数和(自身を除く): 40081120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18217, 36434, 72868, 91085, 145736, 182170, 291472, 346123, 364340, 692246, 728680, 1384492, 1457360, 1730615, 2768984, 3461230, 5537968, 6922460, 13844920, 27689840]

約数ペア:

[(1, 27689840), (2, 13844920), (4, 6922460), (5, 5537968), (8, 3461230), (10, 2768984), (16, 1730615), (19, 1457360), (20, 1384492), (38, 728680), (40, 692246), (76, 364340), (80, 346123), (95, 291472), (152, 182170), (190, 145736), (304, 91085), (380, 72868), (760, 36434), (1520, 18217)]