19629040

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1873}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 46010448

約数和(自身を除く): 26381408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1873, 2096, 2620, 3746, 5240, 7492, 9365, 10480, 14984, 18730, 29968, 37460, 74920, 149840, 245363, 490726, 981452, 1226815, 1962904, 2453630, 3925808, 4907260, 9814520, 19629040]

約数ペア:

[(1, 19629040), (2, 9814520), (4, 4907260), (5, 3925808), (8, 2453630), (10, 1962904), (16, 1226815), (20, 981452), (40, 490726), (80, 245363), (131, 149840), (262, 74920), (524, 37460), (655, 29968), (1048, 18730), (1310, 14984), (1873, 10480), (2096, 9365), (2620, 7492), (3746, 5240)]