131344420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{653}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 281821680

約数和(自身を除く): 150477260

約数列:

[1, 2, 4, 5, 10, 20, 89, 113, 178, 226, 356, 445, 452, 565, 653, 890, 1130, 1306, 1780, 2260, 2612, 3265, 6530, 10057, 13060, 20114, 40228, 50285, 58117, 73789, 100570, 116234, 147578, 201140, 232468, 290585, 295156, 368945, 581170, 737890, 1162340, 1475780, 6567221, 13134442, 26268884, 32836105, 65672210, 131344420]

約数ペア:

[(1, 131344420), (2, 65672210), (4, 32836105), (5, 26268884), (10, 13134442), (20, 6567221), (89, 1475780), (113, 1162340), (178, 737890), (226, 581170), (356, 368945), (445, 295156), (452, 290585), (565, 232468), (653, 201140), (890, 147578), (1130, 116234), (1306, 100570), (1780, 73789), (2260, 58117), (2612, 50285), (3265, 40228), (6530, 20114), (10057, 13060)]