156979720

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{8513}}^1$

素因数の和:8985

約数の個数: 32

約数和(自身を含む): 354012120

約数和(自身を除く): 197032400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4610, 8513, 9220, 17026, 18440, 34052, 42565, 68104, 85130, 170260, 340520, 3924493, 7848986, 15697972, 19622465, 31395944, 39244930, 78489860, 156979720]

約数ペア:

[(1, 156979720), (2, 78489860), (4, 39244930), (5, 31395944), (8, 19622465), (10, 15697972), (20, 7848986), (40, 3924493), (461, 340520), (922, 170260), (1844, 85130), (2305, 68104), (3688, 42565), (4610, 34052), (8513, 18440), (9220, 17026)]