19469680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12809}}^1$

素因数の和:12841

約数の個数: 40

約数和(自身を含む): 47653200

約数和(自身を除く): 28183520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12809, 25618, 51236, 64045, 102472, 128090, 204944, 243371, 256180, 486742, 512360, 973484, 1024720, 1216855, 1946968, 2433710, 3893936, 4867420, 9734840, 19469680]

約数ペア:

[(1, 19469680), (2, 9734840), (4, 4867420), (5, 3893936), (8, 2433710), (10, 1946968), (16, 1216855), (19, 1024720), (20, 973484), (38, 512360), (40, 486742), (76, 256180), (80, 243371), (95, 204944), (152, 128090), (190, 102472), (304, 64045), (380, 51236), (760, 25618), (1520, 12809)]