16556520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 49947840

約数和(自身を除く): 33391320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 281, 491, 562, 843, 982, 1124, 1405, 1473, 1686, 1964, 2248, 2455, 2810, 2946, 3372, 3928, 4215, 4910, 5620, 5892, 6744, 7365, 8430, 9820, 11240, 11784, 14730, 16860, 19640, 29460, 33720, 58920, 137971, 275942, 413913, 551884, 689855, 827826, 1103768, 1379710, 1655652, 2069565, 2759420, 3311304, 4139130, 5518840, 8278260, 16556520]

約数ペア:

[(1, 16556520), (2, 8278260), (3, 5518840), (4, 4139130), (5, 3311304), (6, 2759420), (8, 2069565), (10, 1655652), (12, 1379710), (15, 1103768), (20, 827826), (24, 689855), (30, 551884), (40, 413913), (60, 275942), (120, 137971), (281, 58920), (491, 33720), (562, 29460), (843, 19640), (982, 16860), (1124, 14730), (1405, 11784), (1473, 11240), (1686, 9820), (1964, 8430), (2248, 7365), (2455, 6744), (2810, 5892), (2946, 5620), (3372, 4910), (3928, 4215)]