78097840

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2459}}^1$

素因数の和:2869

約数の個数: 40

約数和(自身を含む): 182108880

約数和(自身を除く): 104011040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2459, 3176, 3970, 4918, 6352, 7940, 9836, 12295, 15880, 19672, 24590, 31760, 39344, 49180, 98360, 196720, 976223, 1952446, 3904892, 4881115, 7809784, 9762230, 15619568, 19524460, 39048920, 78097840]

約数ペア:

[(1, 78097840), (2, 39048920), (4, 19524460), (5, 15619568), (8, 9762230), (10, 7809784), (16, 4881115), (20, 3904892), (40, 1952446), (80, 976223), (397, 196720), (794, 98360), (1588, 49180), (1985, 39344), (2459, 31760), (3176, 24590), (3970, 19672), (4918, 15880), (6352, 12295), (7940, 9836)]