253997680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{186763}}^1$

素因数の和:186793

約数の個数: 40

約数和(自身を含む): 625285872

約数和(自身を除く): 371288192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 186763, 373526, 747052, 933815, 1494104, 1867630, 2988208, 3174971, 3735260, 6349942, 7470520, 12699884, 14941040, 15874855, 25399768, 31749710, 50799536, 63499420, 126998840, 253997680]

約数ペア:

[(1, 253997680), (2, 126998840), (4, 63499420), (5, 50799536), (8, 31749710), (10, 25399768), (16, 15874855), (17, 14941040), (20, 12699884), (34, 7470520), (40, 6349942), (68, 3735260), (80, 3174971), (85, 2988208), (136, 1867630), (170, 1494104), (272, 933815), (340, 747052), (680, 373526), (1360, 186763)]