77307980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 167258784

約数和(自身を除く): 89950804

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 241, 373, 430, 482, 746, 860, 964, 1205, 1492, 1865, 2410, 3730, 4820, 7460, 10363, 16039, 20726, 32078, 41452, 51815, 64156, 80195, 89893, 103630, 160390, 179786, 207260, 320780, 359572, 449465, 898930, 1797860, 3865399, 7730798, 15461596, 19326995, 38653990, 77307980]

約数ペア:

[(1, 77307980), (2, 38653990), (4, 19326995), (5, 15461596), (10, 7730798), (20, 3865399), (43, 1797860), (86, 898930), (172, 449465), (215, 359572), (241, 320780), (373, 207260), (430, 179786), (482, 160390), (746, 103630), (860, 89893), (964, 80195), (1205, 64156), (1492, 51815), (1865, 41452), (2410, 32078), (3730, 20726), (4820, 16039), (7460, 10363)]