87450040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{128603}}^1$

素因数の和:128631

約数の個数: 32

約数和(自身を含む): 208338480

約数和(自身を除く): 120888440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 128603, 257206, 514412, 643015, 1028824, 1286030, 2186251, 2572060, 4372502, 5144120, 8745004, 10931255, 17490008, 21862510, 43725020, 87450040]

約数ペア:

[(1, 87450040), (2, 43725020), (4, 21862510), (5, 17490008), (8, 10931255), (10, 8745004), (17, 5144120), (20, 4372502), (34, 2572060), (40, 2186251), (68, 1286030), (85, 1028824), (136, 643015), (170, 514412), (340, 257206), (680, 128603)]