18829880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27691}}^1$

素因数の和:27719

約数の個数: 32

約数和(自身を含む): 44861040

約数和(自身を除く): 26031160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27691, 55382, 110764, 138455, 221528, 276910, 470747, 553820, 941494, 1107640, 1882988, 2353735, 3765976, 4707470, 9414940, 18829880]

約数ペア:

[(1, 18829880), (2, 9414940), (4, 4707470), (5, 3765976), (8, 2353735), (10, 1882988), (17, 1107640), (20, 941494), (34, 553820), (40, 470747), (68, 276910), (85, 221528), (136, 138455), (170, 110764), (340, 55382), (680, 27691)]