161567380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{3677}}^1$

素因数の和:3725

約数の個数: 48

約数和(自身を含む): 367652880

約数和(自身を除く): 206085500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2197, 3380, 3677, 4394, 7354, 8788, 10985, 14708, 18385, 21970, 36770, 43940, 47801, 73540, 95602, 191204, 239005, 478010, 621413, 956020, 1242826, 2485652, 3107065, 6214130, 8078369, 12428260, 16156738, 32313476, 40391845, 80783690, 161567380]

約数ペア:

[(1, 161567380), (2, 80783690), (4, 40391845), (5, 32313476), (10, 16156738), (13, 12428260), (20, 8078369), (26, 6214130), (52, 3107065), (65, 2485652), (130, 1242826), (169, 956020), (260, 621413), (338, 478010), (676, 239005), (845, 191204), (1690, 95602), (2197, 73540), (3380, 47801), (3677, 43940), (4394, 36770), (7354, 21970), (8788, 18385), (10985, 14708)]