212284720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139661}}^1$

素因数の和:139693

約数の個数: 40

約数和(自身を含む): 519542640

約数和(自身を除く): 307257920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 139661, 279322, 558644, 698305, 1117288, 1396610, 2234576, 2653559, 2793220, 5307118, 5586440, 10614236, 11172880, 13267795, 21228472, 26535590, 42456944, 53071180, 106142360, 212284720]

約数ペア:

[(1, 212284720), (2, 106142360), (4, 53071180), (5, 42456944), (8, 26535590), (10, 21228472), (16, 13267795), (19, 11172880), (20, 10614236), (38, 5586440), (40, 5307118), (76, 2793220), (80, 2653559), (95, 2234576), (152, 1396610), (190, 1117288), (304, 698305), (380, 558644), (760, 279322), (1520, 139661)]