18823520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1743

約数の個数: 48

約数和(自身を含む): 45124128

約数和(自身を除く): 26300608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1657, 2272, 2840, 3314, 5680, 6628, 8285, 11360, 13256, 16570, 26512, 33140, 53024, 66280, 117647, 132560, 235294, 265120, 470588, 588235, 941176, 1176470, 1882352, 2352940, 3764704, 4705880, 9411760, 18823520]

約数ペア:

[(1, 18823520), (2, 9411760), (4, 4705880), (5, 3764704), (8, 2352940), (10, 1882352), (16, 1176470), (20, 941176), (32, 588235), (40, 470588), (71, 265120), (80, 235294), (142, 132560), (160, 117647), (284, 66280), (355, 53024), (568, 33140), (710, 26512), (1136, 16570), (1420, 13256), (1657, 11360), (2272, 8285), (2840, 6628), (3314, 5680)]