289764580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89989}}^1$

素因数の和:90028

約数の個数: 48

約数和(自身を含む): 725679360

約数和(自身を除く): 435914780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 89989, 179978, 359956, 449945, 629923, 899890, 1259846, 1799780, 2069747, 2519692, 3149615, 4139494, 6299230, 8278988, 10348735, 12598460, 14488229, 20697470, 28976458, 41394940, 57952916, 72441145, 144882290, 289764580]

約数ペア:

[(1, 289764580), (2, 144882290), (4, 72441145), (5, 57952916), (7, 41394940), (10, 28976458), (14, 20697470), (20, 14488229), (23, 12598460), (28, 10348735), (35, 8278988), (46, 6299230), (70, 4139494), (92, 3149615), (115, 2519692), (140, 2069747), (161, 1799780), (230, 1259846), (322, 899890), (460, 629923), (644, 449945), (805, 359956), (1610, 179978), (3220, 89989)]