78840680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37189}}^1$

素因数の和:37253

約数の個数: 32

約数和(自身を含む): 180743400

約数和(自身を除く): 101902720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 37189, 74378, 148756, 185945, 297512, 371890, 743780, 1487560, 1971017, 3942034, 7884068, 9855085, 15768136, 19710170, 39420340, 78840680]

約数ペア:

[(1, 78840680), (2, 39420340), (4, 19710170), (5, 15768136), (8, 9855085), (10, 7884068), (20, 3942034), (40, 1971017), (53, 1487560), (106, 743780), (212, 371890), (265, 297512), (424, 185945), (530, 148756), (1060, 74378), (2120, 37189)]