71986760

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 166633200

約数和(自身を除く): 94646440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 89, 146, 178, 277, 292, 356, 365, 445, 554, 584, 712, 730, 890, 1108, 1385, 1460, 1780, 2216, 2770, 2920, 3560, 5540, 6497, 11080, 12994, 20221, 24653, 25988, 32485, 40442, 49306, 51976, 64970, 80884, 98612, 101105, 123265, 129940, 161768, 197224, 202210, 246530, 259880, 404420, 493060, 808840, 986120, 1799669, 3599338, 7198676, 8998345, 14397352, 17996690, 35993380, 71986760]

約数ペア:

[(1, 71986760), (2, 35993380), (4, 17996690), (5, 14397352), (8, 8998345), (10, 7198676), (20, 3599338), (40, 1799669), (73, 986120), (89, 808840), (146, 493060), (178, 404420), (277, 259880), (292, 246530), (356, 202210), (365, 197224), (445, 161768), (554, 129940), (584, 123265), (712, 101105), (730, 98612), (890, 80884), (1108, 64970), (1385, 51976), (1460, 49306), (1780, 40442), (2216, 32485), (2770, 25988), (2920, 24653), (3560, 20221), (5540, 12994), (6497, 11080)]